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Finding the Fourth Proportional to 60,961.40, 91,442.10 and 29,857.40

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Solution

The fourth proportional to 60,961.40, 91,442.10 and 29,857.40 is: 44,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,961.40 : 91,442.10 = 29,857.40 : x
  2. Step 2: Convert to fraction form
    60,961.40/91,442.10 = 29,857.40/x
  3. Step 3: Cross multiply
    60,961.40x = 91,442.10 × 29,857.40
  4. Step 4: Simplify right side
    60,961.40x = 2,730,223,356.54
  5. Step 5: Solve for x
    x = 2,730,223,356.54/60,961.40
  6. Step 6: Final answer
    x = 44,786.10

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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.