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Finding the Fourth Proportional to 56,422.80, 77,863.95 and 35,202.42

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Solution

The fourth proportional to 56,422.80, 77,863.95 and 35,202.42 is: 48,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,422.80 : 77,863.95 = 35,202.42 : x
  2. Step 2: Convert to fraction form
    56,422.80/77,863.95 = 35,202.42/x
  3. Step 3: Cross multiply
    56,422.80x = 77,863.95 × 35,202.42
  4. Step 4: Simplify right side
    56,422.80x = 2,740,999,470.76
  5. Step 5: Solve for x
    x = 2,740,999,470.76/56,422.80
  6. Step 6: Final answer
    x = 48,579.64

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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.