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Finding the Fourth Proportional to 70,902.52, 97,845.51 and 39,071.14

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Solution

The fourth proportional to 70,902.52, 97,845.51 and 39,071.14 is: 53,918.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,902.52 : 97,845.51 = 39,071.14 : x
  2. Step 2: Convert to fraction form
    70,902.52/97,845.51 = 39,071.14/x
  3. Step 3: Cross multiply
    70,902.52x = 97,845.51 × 39,071.14
  4. Step 4: Simplify right side
    70,902.52x = 3,822,935,619.58
  5. Step 5: Solve for x
    x = 3,822,935,619.58/70,902.52
  6. Step 6: Final answer
    x = 53,918.19

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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.