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Finding the Fourth Proportional to 61,887.64, 85,398.42 and 35,025.88

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Solution

The fourth proportional to 61,887.64, 85,398.42 and 35,025.88 is: 48,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,887.64 : 85,398.42 = 35,025.88 : x
  2. Step 2: Convert to fraction form
    61,887.64/85,398.42 = 35,025.88/x
  3. Step 3: Cross multiply
    61,887.64x = 85,398.42 × 35,025.88
  4. Step 4: Simplify right side
    61,887.64x = 2,991,154,811.11
  5. Step 5: Solve for x
    x = 2,991,154,811.11/61,887.64
  6. Step 6: Final answer
    x = 48,332.02

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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.