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Finding the Fourth Proportional to 61,867.60, 85,377.24 and 35,009.62

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Solution

The fourth proportional to 61,867.60, 85,377.24 and 35,009.62 is: 48,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,867.60 : 85,377.24 = 35,009.62 : x
  2. Step 2: Convert to fraction form
    61,867.60/85,377.24 = 35,009.62/x
  3. Step 3: Cross multiply
    61,867.60x = 85,377.24 × 35,009.62
  4. Step 4: Simplify right side
    61,867.60x = 2,989,024,515.61
  5. Step 5: Solve for x
    x = 2,989,024,515.61/61,867.60
  6. Step 6: Final answer
    x = 48,313.25

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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.