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Finding the Fourth Proportional to 9,008.60, 13,492 and 8,697.12

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Solution

The fourth proportional to 9,008.60, 13,492 and 8,697.12 is: 13,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.60 : 13,492 = 8,697.12 : x
  2. Step 2: Convert to fraction form
    9,008.60/13,492 = 8,697.12/x
  3. Step 3: Cross multiply
    9,008.60x = 13,492 × 8,697.12
  4. Step 4: Simplify right side
    9,008.60x = 117,341,543.04
  5. Step 5: Solve for x
    x = 117,341,543.04/9,008.60
  6. Step 6: Final answer
    x = 13,025.50

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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.