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Finding the Fourth Proportional to 61,853.88, 85,358.56 and 33,559.76

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Solution

The fourth proportional to 61,853.88, 85,358.56 and 33,559.76 is: 46,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,853.88 : 85,358.56 = 33,559.76 : x
  2. Step 2: Convert to fraction form
    61,853.88/85,358.56 = 33,559.76/x
  3. Step 3: Cross multiply
    61,853.88x = 85,358.56 × 33,559.76
  4. Step 4: Simplify right side
    61,853.88x = 2,864,612,787.55
  5. Step 5: Solve for x
    x = 2,864,612,787.55/61,853.88
  6. Step 6: Final answer
    x = 46,312.58

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1.5x scale

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.