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Finding the Fourth Proportional to 52,972.74, 79,459.17 and 19,701.18

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Solution

The fourth proportional to 52,972.74, 79,459.17 and 19,701.18 is: 29,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,972.74 : 79,459.17 = 19,701.18 : x
  2. Step 2: Convert to fraction form
    52,972.74/79,459.17 = 19,701.18/x
  3. Step 3: Cross multiply
    52,972.74x = 79,459.17 × 19,701.18
  4. Step 4: Simplify right side
    52,972.74x = 1,565,439,410.82
  5. Step 5: Solve for x
    x = 1,565,439,410.82/52,972.74
  6. Step 6: Final answer
    x = 29,551.79

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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.