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Finding the Fourth Proportional to 70,711.04, 97,581.60 and 38,882.00

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Solution

The fourth proportional to 70,711.04, 97,581.60 and 38,882.00 is: 53,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,711.04 : 97,581.60 = 38,882.00 : x
  2. Step 2: Convert to fraction form
    70,711.04/97,581.60 = 38,882.00/x
  3. Step 3: Cross multiply
    70,711.04x = 97,581.60 × 38,882.00
  4. Step 4: Simplify right side
    70,711.04x = 3,794,167,283.29
  5. Step 5: Solve for x
    x = 3,794,167,283.29/70,711.04
  6. Step 6: Final answer
    x = 53,657.36

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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.