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Finding the Fourth Proportional to 51,026.88, 76,510.88 and 19,825.68

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Solution

The fourth proportional to 51,026.88, 76,510.88 and 19,825.68 is: 29,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,026.88 : 76,510.88 = 19,825.68 : x
  2. Step 2: Convert to fraction form
    51,026.88/76,510.88 = 19,825.68/x
  3. Step 3: Cross multiply
    51,026.88x = 76,510.88 × 19,825.68
  4. Step 4: Simplify right side
    51,026.88x = 1,516,880,223.40
  5. Step 5: Solve for x
    x = 1,516,880,223.40/51,026.88
  6. Step 6: Final answer
    x = 29,727.08

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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.