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Finding the Fourth Proportional to 61,357.88, 91,872.72 and 35,026.40

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Solution

The fourth proportional to 61,357.88, 91,872.72 and 35,026.40 is: 52,445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,357.88 : 91,872.72 = 35,026.40 : x
  2. Step 2: Convert to fraction form
    61,357.88/91,872.72 = 35,026.40/x
  3. Step 3: Cross multiply
    61,357.88x = 91,872.72 × 35,026.40
  4. Step 4: Simplify right side
    61,357.88x = 3,217,970,639.81
  5. Step 5: Solve for x
    x = 3,217,970,639.81/61,357.88
  6. Step 6: Final answer
    x = 52,445.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.