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Finding the Fourth Proportional to 8,869.85, 12,242.52 and 5,332.38

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Solution

The fourth proportional to 8,869.85, 12,242.52 and 5,332.38 is: 7,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.85 : 12,242.52 = 5,332.38 : x
  2. Step 2: Convert to fraction form
    8,869.85/12,242.52 = 5,332.38/x
  3. Step 3: Cross multiply
    8,869.85x = 12,242.52 × 5,332.38
  4. Step 4: Simplify right side
    8,869.85x = 65,281,768.80
  5. Step 5: Solve for x
    x = 65,281,768.80/8,869.85
  6. Step 6: Final answer
    x = 7,359.96

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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.