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Finding the Fourth Proportional to 62,115.66, 85,720.01 and 35,258.61

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Solution

The fourth proportional to 62,115.66, 85,720.01 and 35,258.61 is: 48,657.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,115.66 : 85,720.01 = 35,258.61 : x
  2. Step 2: Convert to fraction form
    62,115.66/85,720.01 = 35,258.61/x
  3. Step 3: Cross multiply
    62,115.66x = 85,720.01 × 35,258.61
  4. Step 4: Simplify right side
    62,115.66x = 3,022,368,225.49
  5. Step 5: Solve for x
    x = 3,022,368,225.49/62,115.66
  6. Step 6: Final answer
    x = 48,657.11

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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.