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Finding the Fourth Proportional to 58,017.44, 87,019.68 and 20,574.38

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Solution

The fourth proportional to 58,017.44, 87,019.68 and 20,574.38 is: 30,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,017.44 : 87,019.68 = 20,574.38 : x
  2. Step 2: Convert to fraction form
    58,017.44/87,019.68 = 20,574.38/x
  3. Step 3: Cross multiply
    58,017.44x = 87,019.68 × 20,574.38
  4. Step 4: Simplify right side
    58,017.44x = 1,790,375,963.80
  5. Step 5: Solve for x
    x = 1,790,375,963.80/58,017.44
  6. Step 6: Final answer
    x = 30,859.27

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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.