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Finding the Fourth Proportional to 52,960.80, 79,430.41 and 15,510.81

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Solution

The fourth proportional to 52,960.80, 79,430.41 and 15,510.81 is: 23,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,960.80 : 79,430.41 = 15,510.81 : x
  2. Step 2: Convert to fraction form
    52,960.80/79,430.41 = 15,510.81/x
  3. Step 3: Cross multiply
    52,960.80x = 79,430.41 × 15,510.81
  4. Step 4: Simplify right side
    52,960.80x = 1,232,029,997.73
  5. Step 5: Solve for x
    x = 1,232,029,997.73/52,960.80
  6. Step 6: Final answer
    x = 23,263.05

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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.