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Finding the Fourth Proportional to 9,042.80, 13,564.20 and 5,932.40

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Solution

The fourth proportional to 9,042.80, 13,564.20 and 5,932.40 is: 8,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,042.80 : 13,564.20 = 5,932.40 : x
  2. Step 2: Convert to fraction form
    9,042.80/13,564.20 = 5,932.40/x
  3. Step 3: Cross multiply
    9,042.80x = 13,564.20 × 5,932.40
  4. Step 4: Simplify right side
    9,042.80x = 80,468,260.08
  5. Step 5: Solve for x
    x = 80,468,260.08/9,042.80
  6. Step 6: Final answer
    x = 8,898.60

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1.5x scale

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.