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Finding the Fourth Proportional to 8,808.10, 12,155.74 and 5,818.70

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Solution

The fourth proportional to 8,808.10, 12,155.74 and 5,818.70 is: 8,030.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.10 : 12,155.74 = 5,818.70 : x
  2. Step 2: Convert to fraction form
    8,808.10/12,155.74 = 5,818.70/x
  3. Step 3: Cross multiply
    8,808.10x = 12,155.74 × 5,818.70
  4. Step 4: Simplify right side
    8,808.10x = 70,730,620.18
  5. Step 5: Solve for x
    x = 70,730,620.18/8,808.10
  6. Step 6: Final answer
    x = 8,030.18

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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.