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Finding the Fourth Proportional to 7,332.80, 11,001.12 and 2,403.20

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Solution

The fourth proportional to 7,332.80, 11,001.12 and 2,403.20 is: 3,605.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.80 : 11,001.12 = 2,403.20 : x
  2. Step 2: Convert to fraction form
    7,332.80/11,001.12 = 2,403.20/x
  3. Step 3: Cross multiply
    7,332.80x = 11,001.12 × 2,403.20
  4. Step 4: Simplify right side
    7,332.80x = 26,437,891.58
  5. Step 5: Solve for x
    x = 26,437,891.58/7,332.80
  6. Step 6: Final answer
    x = 3,605.43

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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.