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Finding the Fourth Proportional to 70,694.40, 97,559.28 and 38,866.24

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Solution

The fourth proportional to 70,694.40, 97,559.28 and 38,866.24 is: 53,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,694.40 : 97,559.28 = 38,866.24 : x
  2. Step 2: Convert to fraction form
    70,694.40/97,559.28 = 38,866.24/x
  3. Step 3: Cross multiply
    70,694.40x = 97,559.28 × 38,866.24
  4. Step 4: Simplify right side
    70,694.40x = 3,791,762,390.71
  5. Step 5: Solve for x
    x = 3,791,762,390.71/70,694.40
  6. Step 6: Final answer
    x = 53,635.97

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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.