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Finding the Fourth Proportional to 61,616.40, 92,424.60 and 57,728.40

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Solution

The fourth proportional to 61,616.40, 92,424.60 and 57,728.40 is: 86,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,616.40 : 92,424.60 = 57,728.40 : x
  2. Step 2: Convert to fraction form
    61,616.40/92,424.60 = 57,728.40/x
  3. Step 3: Cross multiply
    61,616.40x = 92,424.60 × 57,728.40
  4. Step 4: Simplify right side
    61,616.40x = 5,335,524,278.64
  5. Step 5: Solve for x
    x = 5,335,524,278.64/61,616.40
  6. Step 6: Final answer
    x = 86,592.60

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1.5x scale

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.