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Finding the Fourth Proportional to 66,290.88, 99,462.24 and 24,728.16

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Solution

The fourth proportional to 66,290.88, 99,462.24 and 24,728.16 is: 37,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,290.88 : 99,462.24 = 24,728.16 : x
  2. Step 2: Convert to fraction form
    66,290.88/99,462.24 = 24,728.16/x
  3. Step 3: Cross multiply
    66,290.88x = 99,462.24 × 24,728.16
  4. Step 4: Simplify right side
    66,290.88x = 2,459,518,184.68
  5. Step 5: Solve for x
    x = 2,459,518,184.68/66,290.88
  6. Step 6: Final answer
    x = 37,101.91

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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.