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Finding the Fourth Proportional to 61,792.72, 92,617.46 and 28,442.76

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Solution

The fourth proportional to 61,792.72, 92,617.46 and 28,442.76 is: 42,631.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,792.72 : 92,617.46 = 28,442.76 : x
  2. Step 2: Convert to fraction form
    61,792.72/92,617.46 = 28,442.76/x
  3. Step 3: Cross multiply
    61,792.72x = 92,617.46 × 28,442.76
  4. Step 4: Simplify right side
    61,792.72x = 2,634,296,186.59
  5. Step 5: Solve for x
    x = 2,634,296,186.59/61,792.72
  6. Step 6: Final answer
    x = 42,631.17

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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.