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Finding the Fourth Proportional to 8,764.76, 12,094.29 and 4,988.42

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Solution

The fourth proportional to 8,764.76, 12,094.29 and 4,988.42 is: 6,883.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.76 : 12,094.29 = 4,988.42 : x
  2. Step 2: Convert to fraction form
    8,764.76/12,094.29 = 4,988.42/x
  3. Step 3: Cross multiply
    8,764.76x = 12,094.29 × 4,988.42
  4. Step 4: Simplify right side
    8,764.76x = 60,331,398.12
  5. Step 5: Solve for x
    x = 60,331,398.12/8,764.76
  6. Step 6: Final answer
    x = 6,883.41

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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.