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Finding the Fourth Proportional to 61,899.53, 85,423.39 and 35,041.48

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Solution

The fourth proportional to 61,899.53, 85,423.39 and 35,041.48 is: 48,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,899.53 : 85,423.39 = 35,041.48 : x
  2. Step 2: Convert to fraction form
    61,899.53/85,423.39 = 35,041.48/x
  3. Step 3: Cross multiply
    61,899.53x = 85,423.39 × 35,041.48
  4. Step 4: Simplify right side
    61,899.53x = 2,993,361,711.06
  5. Step 5: Solve for x
    x = 2,993,361,711.06/61,899.53
  6. Step 6: Final answer
    x = 48,358.40

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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.