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Finding the Fourth Proportional to 39,751.80, 59,627.28 and 10,169.40

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Solution

The fourth proportional to 39,751.80, 59,627.28 and 10,169.40 is: 15,253.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,751.80 : 59,627.28 = 10,169.40 : x
  2. Step 2: Convert to fraction form
    39,751.80/59,627.28 = 10,169.40/x
  3. Step 3: Cross multiply
    39,751.80x = 59,627.28 × 10,169.40
  4. Step 4: Simplify right side
    39,751.80x = 606,373,661.23
  5. Step 5: Solve for x
    x = 606,373,661.23/39,751.80
  6. Step 6: Final answer
    x = 15,253.99

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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.