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Finding the Fourth Proportional to 39,412.80, 59,119.20 and 37,706.40

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Solution

The fourth proportional to 39,412.80, 59,119.20 and 37,706.40 is: 56,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,412.80 : 59,119.20 = 37,706.40 : x
  2. Step 2: Convert to fraction form
    39,412.80/59,119.20 = 37,706.40/x
  3. Step 3: Cross multiply
    39,412.80x = 59,119.20 × 37,706.40
  4. Step 4: Simplify right side
    39,412.80x = 2,229,172,202.88
  5. Step 5: Solve for x
    x = 2,229,172,202.88/39,412.80
  6. Step 6: Final answer
    x = 56,559.60

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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.