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Finding the Fourth Proportional to 10,609.52, 14,642.52 and 6,418.16

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Solution

The fourth proportional to 10,609.52, 14,642.52 and 6,418.16 is: 8,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609.52 : 14,642.52 = 6,418.16 : x
  2. Step 2: Convert to fraction form
    10,609.52/14,642.52 = 6,418.16/x
  3. Step 3: Cross multiply
    10,609.52x = 14,642.52 × 6,418.16
  4. Step 4: Simplify right side
    10,609.52x = 93,978,036.16
  5. Step 5: Solve for x
    x = 93,978,036.16/10,609.52
  6. Step 6: Final answer
    x = 8,857.90

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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.