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Finding the Fourth Proportional to 8,603.72, 11,872.08 and 5,066.25

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Solution

The fourth proportional to 8,603.72, 11,872.08 and 5,066.25 is: 6,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.72 : 11,872.08 = 5,066.25 : x
  2. Step 2: Convert to fraction form
    8,603.72/11,872.08 = 5,066.25/x
  3. Step 3: Cross multiply
    8,603.72x = 11,872.08 × 5,066.25
  4. Step 4: Simplify right side
    8,603.72x = 60,146,925.30
  5. Step 5: Solve for x
    x = 60,146,925.30/8,603.72
  6. Step 6: Final answer
    x = 6,990.80

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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.