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Finding the Fourth Proportional to 70,397.55, 97,143.03 and 38,566.17

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Solution

The fourth proportional to 70,397.55, 97,143.03 and 38,566.17 is: 53,218.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.55 : 97,143.03 = 38,566.17 : x
  2. Step 2: Convert to fraction form
    70,397.55/97,143.03 = 38,566.17/x
  3. Step 3: Cross multiply
    70,397.55x = 97,143.03 × 38,566.17
  4. Step 4: Simplify right side
    70,397.55x = 3,746,434,609.30
  5. Step 5: Solve for x
    x = 3,746,434,609.30/70,397.55
  6. Step 6: Final answer
    x = 53,218.25

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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.