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Finding the Fourth Proportional to 70,203.58, 96,886.71 and 39,998.38

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Solution

The fourth proportional to 70,203.58, 96,886.71 and 39,998.38 is: 55,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,203.58 : 96,886.71 = 39,998.38 : x
  2. Step 2: Convert to fraction form
    70,203.58/96,886.71 = 39,998.38/x
  3. Step 3: Cross multiply
    70,203.58x = 96,886.71 × 39,998.38
  4. Step 4: Simplify right side
    70,203.58x = 3,875,311,443.53
  5. Step 5: Solve for x
    x = 3,875,311,443.53/70,203.58
  6. Step 6: Final answer
    x = 55,201.05

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Half scale
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Double scale
Find fourth proportional to 70,204.58, 96,888.09 and 39,999.38
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.