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Finding the Fourth Proportional to 39,247.80, 58,871.70 and 36,713.40

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Solution

The fourth proportional to 39,247.80, 58,871.70 and 36,713.40 is: 55,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247.80 : 58,871.70 = 36,713.40 : x
  2. Step 2: Convert to fraction form
    39,247.80/58,871.70 = 36,713.40/x
  3. Step 3: Cross multiply
    39,247.80x = 58,871.70 × 36,713.40
  4. Step 4: Simplify right side
    39,247.80x = 2,161,380,270.78
  5. Step 5: Solve for x
    x = 2,161,380,270.78/39,247.80
  6. Step 6: Final answer
    x = 55,070.10

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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.