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Finding the Fourth Proportional to 11,197.80, 15,454.98 and 6,484.68

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Solution

The fourth proportional to 11,197.80, 15,454.98 and 6,484.68 is: 8,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,197.80 : 15,454.98 = 6,484.68 : x
  2. Step 2: Convert to fraction form
    11,197.80/15,454.98 = 6,484.68/x
  3. Step 3: Cross multiply
    11,197.80x = 15,454.98 × 6,484.68
  4. Step 4: Simplify right side
    11,197.80x = 100,220,599.71
  5. Step 5: Solve for x
    x = 100,220,599.71/11,197.80
  6. Step 6: Final answer
    x = 8,950.03

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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.