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Finding the Fourth Proportional to 61,653.76, 85,073.64 and 34,426.52

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Solution

The fourth proportional to 61,653.76, 85,073.64 and 34,426.52 is: 47,503.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,653.76 : 85,073.64 = 34,426.52 : x
  2. Step 2: Convert to fraction form
    61,653.76/85,073.64 = 34,426.52/x
  3. Step 3: Cross multiply
    61,653.76x = 85,073.64 × 34,426.52
  4. Step 4: Simplify right side
    61,653.76x = 2,928,789,368.93
  5. Step 5: Solve for x
    x = 2,928,789,368.93/61,653.76
  6. Step 6: Final answer
    x = 47,503.82

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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.