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Finding the Fourth Proportional to 11,293.80, 16,948.80 and 6,358.20

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Solution

The fourth proportional to 11,293.80, 16,948.80 and 6,358.20 is: 9,541.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.80 : 16,948.80 = 6,358.20 : x
  2. Step 2: Convert to fraction form
    11,293.80/16,948.80 = 6,358.20/x
  3. Step 3: Cross multiply
    11,293.80x = 16,948.80 × 6,358.20
  4. Step 4: Simplify right side
    11,293.80x = 107,763,860.16
  5. Step 5: Solve for x
    x = 107,763,860.16/11,293.80
  6. Step 6: Final answer
    x = 9,541.86

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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.