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Finding the Fourth Proportional to 20,061.52, 30,033.24 and 19,206.16

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Solution

The fourth proportional to 20,061.52, 30,033.24 and 19,206.16 is: 28,752.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.52 : 30,033.24 = 19,206.16 : x
  2. Step 2: Convert to fraction form
    20,061.52/30,033.24 = 19,206.16/x
  3. Step 3: Cross multiply
    20,061.52x = 30,033.24 × 19,206.16
  4. Step 4: Simplify right side
    20,061.52x = 576,823,212.76
  5. Step 5: Solve for x
    x = 576,823,212.76/20,061.52
  6. Step 6: Final answer
    x = 28,752.72

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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.