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Finding the Fourth Proportional to 17,586.40, 26,373.20 and 8,818.40

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Solution

The fourth proportional to 17,586.40, 26,373.20 and 8,818.40 is: 13,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,586.40 : 26,373.20 = 8,818.40 : x
  2. Step 2: Convert to fraction form
    17,586.40/26,373.20 = 8,818.40/x
  3. Step 3: Cross multiply
    17,586.40x = 26,373.20 × 8,818.40
  4. Step 4: Simplify right side
    17,586.40x = 232,569,426.88
  5. Step 5: Solve for x
    x = 232,569,426.88/17,586.40
  6. Step 6: Final answer
    x = 13,224.39

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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.