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Finding the Fourth Proportional to 9,655.80, 14,472.90 and 5,497.80

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Solution

The fourth proportional to 9,655.80, 14,472.90 and 5,497.80 is: 8,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,655.80 : 14,472.90 = 5,497.80 : x
  2. Step 2: Convert to fraction form
    9,655.80/14,472.90 = 5,497.80/x
  3. Step 3: Cross multiply
    9,655.80x = 14,472.90 × 5,497.80
  4. Step 4: Simplify right side
    9,655.80x = 79,569,109.62
  5. Step 5: Solve for x
    x = 79,569,109.62/9,655.80
  6. Step 6: Final answer
    x = 8,240.55

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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.