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Finding the Fourth Proportional to 8,773.16, 12,102.90 and 5,045

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Solution

The fourth proportional to 8,773.16, 12,102.90 and 5,045 is: 6,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.16 : 12,102.90 = 5,045 : x
  2. Step 2: Convert to fraction form
    8,773.16/12,102.90 = 5,045/x
  3. Step 3: Cross multiply
    8,773.16x = 12,102.90 × 5,045
  4. Step 4: Simplify right side
    8,773.16x = 61,059,130.50
  5. Step 5: Solve for x
    x = 61,059,130.50/8,773.16
  6. Step 6: Final answer
    x = 6,959.76

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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.