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Finding the Fourth Proportional to 61,374.30, 92,061.46 and 19,260.88

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Solution

The fourth proportional to 61,374.30, 92,061.46 and 19,260.88 is: 28,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,374.30 : 92,061.46 = 19,260.88 : x
  2. Step 2: Convert to fraction form
    61,374.30/92,061.46 = 19,260.88/x
  3. Step 3: Cross multiply
    61,374.30x = 92,061.46 × 19,260.88
  4. Step 4: Simplify right side
    61,374.30x = 1,773,184,455.38
  5. Step 5: Solve for x
    x = 1,773,184,455.38/61,374.30
  6. Step 6: Final answer
    x = 28,891.32

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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.