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Finding the Fourth Proportional to 8,358.15, 11,535.41 and 4,821.29

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Solution

The fourth proportional to 8,358.15, 11,535.41 and 4,821.29 is: 6,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.15 : 11,535.41 = 4,821.29 : x
  2. Step 2: Convert to fraction form
    8,358.15/11,535.41 = 4,821.29/x
  3. Step 3: Cross multiply
    8,358.15x = 11,535.41 × 4,821.29
  4. Step 4: Simplify right side
    8,358.15x = 55,615,475.10
  5. Step 5: Solve for x
    x = 55,615,475.10/8,358.15
  6. Step 6: Final answer
    x = 6,654.04

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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.