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Finding the Fourth Proportional to 4,909.38, 7,332.76 and 4,253.28

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Solution

The fourth proportional to 4,909.38, 7,332.76 and 4,253.28 is: 6,352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.38 : 7,332.76 = 4,253.28 : x
  2. Step 2: Convert to fraction form
    4,909.38/7,332.76 = 4,253.28/x
  3. Step 3: Cross multiply
    4,909.38x = 7,332.76 × 4,253.28
  4. Step 4: Simplify right side
    4,909.38x = 31,188,281.45
  5. Step 5: Solve for x
    x = 31,188,281.45/4,909.38
  6. Step 6: Final answer
    x = 6,352.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.