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Finding the Fourth Proportional to 7,655.80, 11,483.70 and 7,364.20

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Solution

The fourth proportional to 7,655.80, 11,483.70 and 7,364.20 is: 11,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.80 : 11,483.70 = 7,364.20 : x
  2. Step 2: Convert to fraction form
    7,655.80/11,483.70 = 7,364.20/x
  3. Step 3: Cross multiply
    7,655.80x = 11,483.70 × 7,364.20
  4. Step 4: Simplify right side
    7,655.80x = 84,568,263.54
  5. Step 5: Solve for x
    x = 84,568,263.54/7,655.80
  6. Step 6: Final answer
    x = 11,046.30

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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.