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Finding the Fourth Proportional to 39,751.56, 59,590.28 and 13,437.90

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Solution

The fourth proportional to 39,751.56, 59,590.28 and 13,437.90 is: 20,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.56 : 59,590.28 = 13,437.90 : x
  2. Step 2: Convert to fraction form
    39,751.56/59,590.28 = 13,437.90/x
  3. Step 3: Cross multiply
    39,751.56x = 59,590.28 × 13,437.90
  4. Step 4: Simplify right side
    39,751.56x = 800,767,949.76
  5. Step 5: Solve for x
    x = 800,767,949.76/39,751.56
  6. Step 6: Final answer
    x = 20,144.32

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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.