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Finding the Fourth Proportional to 19,179.72, 28,750.99 and 9,824.16

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Solution

The fourth proportional to 19,179.72, 28,750.99 and 9,824.16 is: 14,726.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.72 : 28,750.99 = 9,824.16 : x
  2. Step 2: Convert to fraction form
    19,179.72/28,750.99 = 9,824.16/x
  3. Step 3: Cross multiply
    19,179.72x = 28,750.99 × 9,824.16
  4. Step 4: Simplify right side
    19,179.72x = 282,454,325.92
  5. Step 5: Solve for x
    x = 282,454,325.92/19,179.72
  6. Step 6: Final answer
    x = 14,726.72

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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.