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Finding the Fourth Proportional to 7,472.61, 11,208.80 and 2,545.68

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Solution

The fourth proportional to 7,472.61, 11,208.80 and 2,545.68 is: 3,818.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.61 : 11,208.80 = 2,545.68 : x
  2. Step 2: Convert to fraction form
    7,472.61/11,208.80 = 2,545.68/x
  3. Step 3: Cross multiply
    7,472.61x = 11,208.80 × 2,545.68
  4. Step 4: Simplify right side
    7,472.61x = 28,534,005.26
  5. Step 5: Solve for x
    x = 28,534,005.26/7,472.61
  6. Step 6: Final answer
    x = 3,818.48

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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.