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Finding the Fourth Proportional to 9,246.28, 12,748.96 and 7,472.40

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Solution

The fourth proportional to 9,246.28, 12,748.96 and 7,472.40 is: 10,303.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,246.28 : 12,748.96 = 7,472.40 : x
  2. Step 2: Convert to fraction form
    9,246.28/12,748.96 = 7,472.40/x
  3. Step 3: Cross multiply
    9,246.28x = 12,748.96 × 7,472.40
  4. Step 4: Simplify right side
    9,246.28x = 95,265,328.70
  5. Step 5: Solve for x
    x = 95,265,328.70/9,246.28
  6. Step 6: Final answer
    x = 10,303.10

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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.