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Finding the Fourth Proportional to 19,366.60, 29,049.90 and 6,228.40

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Solution

The fourth proportional to 19,366.60, 29,049.90 and 6,228.40 is: 9,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.60 : 29,049.90 = 6,228.40 : x
  2. Step 2: Convert to fraction form
    19,366.60/29,049.90 = 6,228.40/x
  3. Step 3: Cross multiply
    19,366.60x = 29,049.90 × 6,228.40
  4. Step 4: Simplify right side
    19,366.60x = 180,934,397.16
  5. Step 5: Solve for x
    x = 180,934,397.16/19,366.60
  6. Step 6: Final answer
    x = 9,342.60

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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.