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Finding the Fourth Proportional to 9,717.12, 14,600.88 and 8,487.84

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Solution

The fourth proportional to 9,717.12, 14,600.88 and 8,487.84 is: 12,753.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,717.12 : 14,600.88 = 8,487.84 : x
  2. Step 2: Convert to fraction form
    9,717.12/14,600.88 = 8,487.84/x
  3. Step 3: Cross multiply
    9,717.12x = 14,600.88 × 8,487.84
  4. Step 4: Simplify right side
    9,717.12x = 123,929,933.30
  5. Step 5: Solve for x
    x = 123,929,933.30/9,717.12
  6. Step 6: Final answer
    x = 12,753.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.