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Finding the Fourth Proportional to 9,866.16, 14,777.28 and 9,097.88

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Solution

The fourth proportional to 9,866.16, 14,777.28 and 9,097.88 is: 13,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.16 : 14,777.28 = 9,097.88 : x
  2. Step 2: Convert to fraction form
    9,866.16/14,777.28 = 9,097.88/x
  3. Step 3: Cross multiply
    9,866.16x = 14,777.28 × 9,097.88
  4. Step 4: Simplify right side
    9,866.16x = 134,441,920.17
  5. Step 5: Solve for x
    x = 134,441,920.17/9,866.16
  6. Step 6: Final answer
    x = 13,626.57

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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.