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Finding the Fourth Proportional to 15,821.79, 23,737.64 and 4,728.93

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Solution

The fourth proportional to 15,821.79, 23,737.64 and 4,728.93 is: 7,094.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.79 : 23,737.64 = 4,728.93 : x
  2. Step 2: Convert to fraction form
    15,821.79/23,737.64 = 4,728.93/x
  3. Step 3: Cross multiply
    15,821.79x = 23,737.64 × 4,728.93
  4. Step 4: Simplify right side
    15,821.79x = 112,253,614.28
  5. Step 5: Solve for x
    x = 112,253,614.28/15,821.79
  6. Step 6: Final answer
    x = 7,094.87

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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.