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Finding the Fourth Proportional to 70,682.92, 97,543.68 and 38,851.72

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Solution

The fourth proportional to 70,682.92, 97,543.68 and 38,851.72 is: 53,616.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,682.92 : 97,543.68 = 38,851.72 : x
  2. Step 2: Convert to fraction form
    70,682.92/97,543.68 = 38,851.72/x
  3. Step 3: Cross multiply
    70,682.92x = 97,543.68 × 38,851.72
  4. Step 4: Simplify right side
    70,682.92x = 3,789,739,743.13
  5. Step 5: Solve for x
    x = 3,789,739,743.13/70,682.92
  6. Step 6: Final answer
    x = 53,616.06

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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.