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Finding the Fourth Proportional to 52,759.84, 79,143.86 and 15,320.53

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Solution

The fourth proportional to 52,759.84, 79,143.86 and 15,320.53 is: 22,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,759.84 : 79,143.86 = 15,320.53 : x
  2. Step 2: Convert to fraction form
    52,759.84/79,143.86 = 15,320.53/x
  3. Step 3: Cross multiply
    52,759.84x = 79,143.86 × 15,320.53
  4. Step 4: Simplify right side
    52,759.84x = 1,212,525,606.98
  5. Step 5: Solve for x
    x = 1,212,525,606.98/52,759.84
  6. Step 6: Final answer
    x = 22,981.98

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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.