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Finding the Fourth Proportional to 9,446.80, 14,160.90 and 5,288.80

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Solution

The fourth proportional to 9,446.80, 14,160.90 and 5,288.80 is: 7,927.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,446.80 : 14,160.90 = 5,288.80 : x
  2. Step 2: Convert to fraction form
    9,446.80/14,160.90 = 5,288.80/x
  3. Step 3: Cross multiply
    9,446.80x = 14,160.90 × 5,288.80
  4. Step 4: Simplify right side
    9,446.80x = 74,894,167.92
  5. Step 5: Solve for x
    x = 74,894,167.92/9,446.80
  6. Step 6: Final answer
    x = 7,927.99

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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.