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Finding the Fourth Proportional to 48,690.76, 73,044.52 and 15,410.30

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Solution

The fourth proportional to 48,690.76, 73,044.52 and 15,410.30 is: 23,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,690.76 : 73,044.52 = 15,410.30 : x
  2. Step 2: Convert to fraction form
    48,690.76/73,044.52 = 15,410.30/x
  3. Step 3: Cross multiply
    48,690.76x = 73,044.52 × 15,410.30
  4. Step 4: Simplify right side
    48,690.76x = 1,125,637,966.56
  5. Step 5: Solve for x
    x = 1,125,637,966.56/48,690.76
  6. Step 6: Final answer
    x = 23,118.10

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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.