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Finding the Fourth Proportional to 56,563.20, 84,844.80 and 30,254.40

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Solution

The fourth proportional to 56,563.20, 84,844.80 and 30,254.40 is: 45,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,563.20 : 84,844.80 = 30,254.40 : x
  2. Step 2: Convert to fraction form
    56,563.20/84,844.80 = 30,254.40/x
  3. Step 3: Cross multiply
    56,563.20x = 84,844.80 × 30,254.40
  4. Step 4: Simplify right side
    56,563.20x = 2,566,928,517.12
  5. Step 5: Solve for x
    x = 2,566,928,517.12/56,563.20
  6. Step 6: Final answer
    x = 45,381.60

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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.