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Finding the Fourth Proportional to 66,427.70, 99,641.55 and 24,869.30

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Solution

The fourth proportional to 66,427.70, 99,641.55 and 24,869.30 is: 37,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427.70 : 99,641.55 = 24,869.30 : x
  2. Step 2: Convert to fraction form
    66,427.70/99,641.55 = 24,869.30/x
  3. Step 3: Cross multiply
    66,427.70x = 99,641.55 × 24,869.30
  4. Step 4: Simplify right side
    66,427.70x = 2,478,015,599.42
  5. Step 5: Solve for x
    x = 2,478,015,599.42/66,427.70
  6. Step 6: Final answer
    x = 37,303.95

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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.