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Finding the Fourth Proportional to 12,545.76, 18,807.12 and 4,332

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Solution

The fourth proportional to 12,545.76, 18,807.12 and 4,332 is: 6,494.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.76 : 18,807.12 = 4,332 : x
  2. Step 2: Convert to fraction form
    12,545.76/18,807.12 = 4,332/x
  3. Step 3: Cross multiply
    12,545.76x = 18,807.12 × 4,332
  4. Step 4: Simplify right side
    12,545.76x = 81,472,443.84
  5. Step 5: Solve for x
    x = 81,472,443.84/12,545.76
  6. Step 6: Final answer
    x = 6,494.02

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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.