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Finding the Fourth Proportional to 7,246.60, 10,869.90 and 3,549.40

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Solution

The fourth proportional to 7,246.60, 10,869.90 and 3,549.40 is: 5,324.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,246.60 : 10,869.90 = 3,549.40 : x
  2. Step 2: Convert to fraction form
    7,246.60/10,869.90 = 3,549.40/x
  3. Step 3: Cross multiply
    7,246.60x = 10,869.90 × 3,549.40
  4. Step 4: Simplify right side
    7,246.60x = 38,581,623.06
  5. Step 5: Solve for x
    x = 38,581,623.06/7,246.60
  6. Step 6: Final answer
    x = 5,324.10

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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.