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Finding the Fourth Proportional to 11,248.40, 16,834.20 and 11,248.40

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Solution

The fourth proportional to 11,248.40, 16,834.20 and 11,248.40 is: 16,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.40 : 16,834.20 = 11,248.40 : x
  2. Step 2: Convert to fraction form
    11,248.40/16,834.20 = 11,248.40/x
  3. Step 3: Cross multiply
    11,248.40x = 16,834.20 × 11,248.40
  4. Step 4: Simplify right side
    11,248.40x = 189,357,815.28
  5. Step 5: Solve for x
    x = 189,357,815.28/11,248.40
  6. Step 6: Final answer
    x = 16,834.20

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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.