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Finding the Fourth Proportional to 70,097.58, 96,726.15 and 39,886.74

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Solution

The fourth proportional to 70,097.58, 96,726.15 and 39,886.74 is: 55,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,097.58 : 96,726.15 = 39,886.74 : x
  2. Step 2: Convert to fraction form
    70,097.58/96,726.15 = 39,886.74/x
  3. Step 3: Cross multiply
    70,097.58x = 96,726.15 × 39,886.74
  4. Step 4: Simplify right side
    70,097.58x = 3,858,090,796.25
  5. Step 5: Solve for x
    x = 3,858,090,796.25/70,097.58
  6. Step 6: Final answer
    x = 55,038.86

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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.