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Finding the Fourth Proportional to 41,710.44, 62,526.78 and 13,989

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Solution

The fourth proportional to 41,710.44, 62,526.78 and 13,989 is: 20,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,710.44 : 62,526.78 = 13,989 : x
  2. Step 2: Convert to fraction form
    41,710.44/62,526.78 = 13,989/x
  3. Step 3: Cross multiply
    41,710.44x = 62,526.78 × 13,989
  4. Step 4: Simplify right side
    41,710.44x = 874,687,125.42
  5. Step 5: Solve for x
    x = 874,687,125.42/41,710.44
  6. Step 6: Final answer
    x = 20,970.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.