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Finding the Fourth Proportional to 61,360.80, 84,671.76 and 34,499.04

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Solution

The fourth proportional to 61,360.80, 84,671.76 and 34,499.04 is: 47,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,360.80 : 84,671.76 = 34,499.04 : x
  2. Step 2: Convert to fraction form
    61,360.80/84,671.76 = 34,499.04/x
  3. Step 3: Cross multiply
    61,360.80x = 84,671.76 × 34,499.04
  4. Step 4: Simplify right side
    61,360.80x = 2,921,094,435.11
  5. Step 5: Solve for x
    x = 2,921,094,435.11/61,360.80
  6. Step 6: Final answer
    x = 47,605.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.