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Finding the Fourth Proportional to 17,591.40, 26,408.70 and 9,700.20

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Solution

The fourth proportional to 17,591.40, 26,408.70 and 9,700.20 is: 14,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,591.40 : 26,408.70 = 9,700.20 : x
  2. Step 2: Convert to fraction form
    17,591.40/26,408.70 = 9,700.20/x
  3. Step 3: Cross multiply
    17,591.40x = 26,408.70 × 9,700.20
  4. Step 4: Simplify right side
    17,591.40x = 256,169,671.74
  5. Step 5: Solve for x
    x = 256,169,671.74/17,591.40
  6. Step 6: Final answer
    x = 14,562.21

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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.