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Finding the Fourth Proportional to 70,662.52, 97,513.53 and 40,447.30

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Solution

The fourth proportional to 70,662.52, 97,513.53 and 40,447.30 is: 55,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,662.52 : 97,513.53 = 40,447.30 : x
  2. Step 2: Convert to fraction form
    70,662.52/97,513.53 = 40,447.30/x
  3. Step 3: Cross multiply
    70,662.52x = 97,513.53 × 40,447.30
  4. Step 4: Simplify right side
    70,662.52x = 3,944,159,001.97
  5. Step 5: Solve for x
    x = 3,944,159,001.97/70,662.52
  6. Step 6: Final answer
    x = 55,816.85

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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.