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Finding the Fourth Proportional to 7,966.80, 11,950.20 and 5,048.40

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Solution

The fourth proportional to 7,966.80, 11,950.20 and 5,048.40 is: 7,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.80 : 11,950.20 = 5,048.40 : x
  2. Step 2: Convert to fraction form
    7,966.80/11,950.20 = 5,048.40/x
  3. Step 3: Cross multiply
    7,966.80x = 11,950.20 × 5,048.40
  4. Step 4: Simplify right side
    7,966.80x = 60,329,389.68
  5. Step 5: Solve for x
    x = 60,329,389.68/7,966.80
  6. Step 6: Final answer
    x = 7,572.60

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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.