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Finding the Fourth Proportional to 9,651.52, 13,319.32 and 5,460

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Solution

The fourth proportional to 9,651.52, 13,319.32 and 5,460 is: 7,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,651.52 : 13,319.32 = 5,460 : x
  2. Step 2: Convert to fraction form
    9,651.52/13,319.32 = 5,460/x
  3. Step 3: Cross multiply
    9,651.52x = 13,319.32 × 5,460
  4. Step 4: Simplify right side
    9,651.52x = 72,723,487.20
  5. Step 5: Solve for x
    x = 72,723,487.20/9,651.52
  6. Step 6: Final answer
    x = 7,534.93

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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.