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Finding the Fourth Proportional to 57,340.80, 86,011.20 and 44,218.80

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Solution

The fourth proportional to 57,340.80, 86,011.20 and 44,218.80 is: 66,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,340.80 : 86,011.20 = 44,218.80 : x
  2. Step 2: Convert to fraction form
    57,340.80/86,011.20 = 44,218.80/x
  3. Step 3: Cross multiply
    57,340.80x = 86,011.20 × 44,218.80
  4. Step 4: Simplify right side
    57,340.80x = 3,803,312,050.56
  5. Step 5: Solve for x
    x = 3,803,312,050.56/57,340.80
  6. Step 6: Final answer
    x = 66,328.20

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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.