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Finding the Fourth Proportional to 8,459.10, 11,672.01 and 4,923.45

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Solution

The fourth proportional to 8,459.10, 11,672.01 and 4,923.45 is: 6,793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.10 : 11,672.01 = 4,923.45 : x
  2. Step 2: Convert to fraction form
    8,459.10/11,672.01 = 4,923.45/x
  3. Step 3: Cross multiply
    8,459.10x = 11,672.01 × 4,923.45
  4. Step 4: Simplify right side
    8,459.10x = 57,466,557.63
  5. Step 5: Solve for x
    x = 57,466,557.63/8,459.10
  6. Step 6: Final answer
    x = 6,793.46

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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.