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Finding the Fourth Proportional to 51,017.80, 76,526.72 and 15,957.60

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Solution

The fourth proportional to 51,017.80, 76,526.72 and 15,957.60 is: 23,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,017.80 : 76,526.72 = 15,957.60 : x
  2. Step 2: Convert to fraction form
    51,017.80/76,526.72 = 15,957.60/x
  3. Step 3: Cross multiply
    51,017.80x = 76,526.72 × 15,957.60
  4. Step 4: Simplify right side
    51,017.80x = 1,221,182,787.07
  5. Step 5: Solve for x
    x = 1,221,182,787.07/51,017.80
  6. Step 6: Final answer
    x = 23,936.41

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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.