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Finding the Fourth Proportional to 17,569.80, 26,353.80 and 12,648.24

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Solution

The fourth proportional to 17,569.80, 26,353.80 and 12,648.24 is: 18,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,569.80 : 26,353.80 = 12,648.24 : x
  2. Step 2: Convert to fraction form
    17,569.80/26,353.80 = 12,648.24/x
  3. Step 3: Cross multiply
    17,569.80x = 26,353.80 × 12,648.24
  4. Step 4: Simplify right side
    17,569.80x = 333,329,187.31
  5. Step 5: Solve for x
    x = 333,329,187.31/17,569.80
  6. Step 6: Final answer
    x = 18,971.71

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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.