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Finding the Fourth Proportional to 66,084.87, 99,225.72 and 26,718.87

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Solution

The fourth proportional to 66,084.87, 99,225.72 and 26,718.87 is: 40,118.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,084.87 : 99,225.72 = 26,718.87 : x
  2. Step 2: Convert to fraction form
    66,084.87/99,225.72 = 26,718.87/x
  3. Step 3: Cross multiply
    66,084.87x = 99,225.72 × 26,718.87
  4. Step 4: Simplify right side
    66,084.87x = 2,651,198,979.74
  5. Step 5: Solve for x
    x = 2,651,198,979.74/66,084.87
  6. Step 6: Final answer
    x = 40,118.09

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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.