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Finding the Fourth Proportional to 9,292.61, 12,819.71 and 5,755.14

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Solution

The fourth proportional to 9,292.61, 12,819.71 and 5,755.14 is: 7,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,292.61 : 12,819.71 = 5,755.14 : x
  2. Step 2: Convert to fraction form
    9,292.61/12,819.71 = 5,755.14/x
  3. Step 3: Cross multiply
    9,292.61x = 12,819.71 × 5,755.14
  4. Step 4: Simplify right side
    9,292.61x = 73,779,197.03
  5. Step 5: Solve for x
    x = 73,779,197.03/9,292.61
  6. Step 6: Final answer
    x = 7,939.56

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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.