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Finding the Fourth Proportional to 53,491.80, 80,237.70 and 44,938.20

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Solution

The fourth proportional to 53,491.80, 80,237.70 and 44,938.20 is: 67,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,491.80 : 80,237.70 = 44,938.20 : x
  2. Step 2: Convert to fraction form
    53,491.80/80,237.70 = 44,938.20/x
  3. Step 3: Cross multiply
    53,491.80x = 80,237.70 × 44,938.20
  4. Step 4: Simplify right side
    53,491.80x = 3,605,737,810.14
  5. Step 5: Solve for x
    x = 3,605,737,810.14/53,491.80
  6. Step 6: Final answer
    x = 67,407.30

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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.