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Finding the Fourth Proportional to 8,700.92, 12,001.88 and 5,337.88

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Solution

The fourth proportional to 8,700.92, 12,001.88 and 5,337.88 is: 7,362.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.92 : 12,001.88 = 5,337.88 : x
  2. Step 2: Convert to fraction form
    8,700.92/12,001.88 = 5,337.88/x
  3. Step 3: Cross multiply
    8,700.92x = 12,001.88 × 5,337.88
  4. Step 4: Simplify right side
    8,700.92x = 64,064,595.21
  5. Step 5: Solve for x
    x = 64,064,595.21/8,700.92
  6. Step 6: Final answer
    x = 7,362.97

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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.