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Finding the Fourth Proportional to 8,797.05, 12,140.15 and 4,818.16

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Solution

The fourth proportional to 8,797.05, 12,140.15 and 4,818.16 is: 6,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.05 : 12,140.15 = 4,818.16 : x
  2. Step 2: Convert to fraction form
    8,797.05/12,140.15 = 4,818.16/x
  3. Step 3: Cross multiply
    8,797.05x = 12,140.15 × 4,818.16
  4. Step 4: Simplify right side
    8,797.05x = 58,493,176.21
  5. Step 5: Solve for x
    x = 58,493,176.21/8,797.05
  6. Step 6: Final answer
    x = 6,649.18

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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.