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Finding the Fourth Proportional to 19,159.28, 28,734.74 and 6,009.92

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Solution

The fourth proportional to 19,159.28, 28,734.74 and 6,009.92 is: 9,013.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159.28 : 28,734.74 = 6,009.92 : x
  2. Step 2: Convert to fraction form
    19,159.28/28,734.74 = 6,009.92/x
  3. Step 3: Cross multiply
    19,159.28x = 28,734.74 × 6,009.92
  4. Step 4: Simplify right side
    19,159.28x = 172,693,488.62
  5. Step 5: Solve for x
    x = 172,693,488.62/19,159.28
  6. Step 6: Final answer
    x = 9,013.57

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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.