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Finding the Fourth Proportional to 8,767.72, 12,098.98 and 4,788.06

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Solution

The fourth proportional to 8,767.72, 12,098.98 and 4,788.06 is: 6,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,767.72 : 12,098.98 = 4,788.06 : x
  2. Step 2: Convert to fraction form
    8,767.72/12,098.98 = 4,788.06/x
  3. Step 3: Cross multiply
    8,767.72x = 12,098.98 × 4,788.06
  4. Step 4: Simplify right side
    8,767.72x = 57,930,642.18
  5. Step 5: Solve for x
    x = 57,930,642.18/8,767.72
  6. Step 6: Final answer
    x = 6,607.26

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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.