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Finding the Fourth Proportional to 19,209.52, 26,509.12 and 10,377.52

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Solution

The fourth proportional to 19,209.52, 26,509.12 and 10,377.52 is: 14,320.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.52 : 26,509.12 = 10,377.52 : x
  2. Step 2: Convert to fraction form
    19,209.52/26,509.12 = 10,377.52/x
  3. Step 3: Cross multiply
    19,209.52x = 26,509.12 × 10,377.52
  4. Step 4: Simplify right side
    19,209.52x = 275,098,922.98
  5. Step 5: Solve for x
    x = 275,098,922.98/19,209.52
  6. Step 6: Final answer
    x = 14,320.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.