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Finding the Fourth Proportional to 66,376.24, 99,561.12 and 24,820

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Solution

The fourth proportional to 66,376.24, 99,561.12 and 24,820 is: 37,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,376.24 : 99,561.12 = 24,820 : x
  2. Step 2: Convert to fraction form
    66,376.24/99,561.12 = 24,820/x
  3. Step 3: Cross multiply
    66,376.24x = 99,561.12 × 24,820
  4. Step 4: Simplify right side
    66,376.24x = 2,471,106,998.40
  5. Step 5: Solve for x
    x = 2,471,106,998.40/66,376.24
  6. Step 6: Final answer
    x = 37,228.79

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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.