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Finding the Fourth Proportional to 8,767.10, 12,098.86 and 4,788.40

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Solution

The fourth proportional to 8,767.10, 12,098.86 and 4,788.40 is: 6,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,767.10 : 12,098.86 = 4,788.40 : x
  2. Step 2: Convert to fraction form
    8,767.10/12,098.86 = 4,788.40/x
  3. Step 3: Cross multiply
    8,767.10x = 12,098.86 × 4,788.40
  4. Step 4: Simplify right side
    8,767.10x = 57,934,181.22
  5. Step 5: Solve for x
    x = 57,934,181.22/8,767.10
  6. Step 6: Final answer
    x = 6,608.14

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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.