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Finding the Fourth Proportional to 61,812, 92,733.54 and 28,555.58

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Solution

The fourth proportional to 61,812, 92,733.54 and 28,555.58 is: 42,840.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,812 : 92,733.54 = 28,555.58 : x
  2. Step 2: Convert to fraction form
    61,812/92,733.54 = 28,555.58/x
  3. Step 3: Cross multiply
    61,812x = 92,733.54 × 28,555.58
  4. Step 4: Simplify right side
    61,812x = 2,648,060,020.15
  5. Step 5: Solve for x
    x = 2,648,060,020.15/61,812
  6. Step 6: Final answer
    x = 42,840.55

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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.