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Finding the Fourth Proportional to 19,130.31, 28,592.91 and 17,251.92

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Solution

The fourth proportional to 19,130.31, 28,592.91 and 17,251.92 is: 25,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.31 : 28,592.91 = 17,251.92 : x
  2. Step 2: Convert to fraction form
    19,130.31/28,592.91 = 17,251.92/x
  3. Step 3: Cross multiply
    19,130.31x = 28,592.91 × 17,251.92
  4. Step 4: Simplify right side
    19,130.31x = 493,282,595.89
  5. Step 5: Solve for x
    x = 493,282,595.89/19,130.31
  6. Step 6: Final answer
    x = 25,785.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.