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Finding the Fourth Proportional to 70,003, 96,600.63 and 39,784.33

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Solution

The fourth proportional to 70,003, 96,600.63 and 39,784.33 is: 54,900.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,003 : 96,600.63 = 39,784.33 : x
  2. Step 2: Convert to fraction form
    70,003/96,600.63 = 39,784.33/x
  3. Step 3: Cross multiply
    70,003x = 96,600.63 × 39,784.33
  4. Step 4: Simplify right side
    70,003x = 3,843,191,342.13
  5. Step 5: Solve for x
    x = 3,843,191,342.13/70,003
  6. Step 6: Final answer
    x = 54,900.38

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Double scale
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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.