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Finding the Fourth Proportional to 61,651.22, 92,482.16 and 21,666.78

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Solution

The fourth proportional to 61,651.22, 92,482.16 and 21,666.78 is: 32,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,651.22 : 92,482.16 = 21,666.78 : x
  2. Step 2: Convert to fraction form
    61,651.22/92,482.16 = 21,666.78/x
  3. Step 3: Cross multiply
    61,651.22x = 92,482.16 × 21,666.78
  4. Step 4: Simplify right side
    61,651.22x = 2,003,790,506.31
  5. Step 5: Solve for x
    x = 2,003,790,506.31/61,651.22
  6. Step 6: Final answer
    x = 32,502.04

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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.