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Finding the Fourth Proportional to 9,617.70, 13,271.67 and 5,426.70

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Solution

The fourth proportional to 9,617.70, 13,271.67 and 5,426.70 is: 7,488.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,617.70 : 13,271.67 = 5,426.70 : x
  2. Step 2: Convert to fraction form
    9,617.70/13,271.67 = 5,426.70/x
  3. Step 3: Cross multiply
    9,617.70x = 13,271.67 × 5,426.70
  4. Step 4: Simplify right side
    9,617.70x = 72,021,371.59
  5. Step 5: Solve for x
    x = 72,021,371.59/9,617.70
  6. Step 6: Final answer
    x = 7,488.42

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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.