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Finding the Fourth Proportional to 17,248.40, 25,901.40 and 11,430.80

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Solution

The fourth proportional to 17,248.40, 25,901.40 and 11,430.80 is: 17,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,248.40 : 25,901.40 = 11,430.80 : x
  2. Step 2: Convert to fraction form
    17,248.40/25,901.40 = 11,430.80/x
  3. Step 3: Cross multiply
    17,248.40x = 25,901.40 × 11,430.80
  4. Step 4: Simplify right side
    17,248.40x = 296,073,723.12
  5. Step 5: Solve for x
    x = 296,073,723.12/17,248.40
  6. Step 6: Final answer
    x = 17,165.29

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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.