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Finding the Fourth Proportional to 19,165.80, 26,452.74 and 11,209.98

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Solution

The fourth proportional to 19,165.80, 26,452.74 and 11,209.98 is: 15,472.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.80 : 26,452.74 = 11,209.98 : x
  2. Step 2: Convert to fraction form
    19,165.80/26,452.74 = 11,209.98/x
  3. Step 3: Cross multiply
    19,165.80x = 26,452.74 × 11,209.98
  4. Step 4: Simplify right side
    19,165.80x = 296,534,686.35
  5. Step 5: Solve for x
    x = 296,534,686.35/19,165.80
  6. Step 6: Final answer
    x = 15,472.07

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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.