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Finding the Fourth Proportional to 32,484, 48,726.24 and 7,860

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Solution

The fourth proportional to 32,484, 48,726.24 and 7,860 is: 11,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,484 : 48,726.24 = 7,860 : x
  2. Step 2: Convert to fraction form
    32,484/48,726.24 = 7,860/x
  3. Step 3: Cross multiply
    32,484x = 48,726.24 × 7,860
  4. Step 4: Simplify right side
    32,484x = 382,988,246.40
  5. Step 5: Solve for x
    x = 382,988,246.40/32,484
  6. Step 6: Final answer
    x = 11,790.06

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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.