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Finding the Fourth Proportional to 45,963.84, 63,446.04 and 28,979.76

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Solution

The fourth proportional to 45,963.84, 63,446.04 and 28,979.76 is: 40,002.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,963.84 : 63,446.04 = 28,979.76 : x
  2. Step 2: Convert to fraction form
    45,963.84/63,446.04 = 28,979.76/x
  3. Step 3: Cross multiply
    45,963.84x = 63,446.04 × 28,979.76
  4. Step 4: Simplify right side
    45,963.84x = 1,838,651,012.15
  5. Step 5: Solve for x
    x = 1,838,651,012.15/45,963.84
  6. Step 6: Final answer
    x = 40,002.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.