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Finding the Fourth Proportional to 52,957.72, 79,315.08 and 30,715.93

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Solution

The fourth proportional to 52,957.72, 79,315.08 and 30,715.93 is: 46,003.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,957.72 : 79,315.08 = 30,715.93 : x
  2. Step 2: Convert to fraction form
    52,957.72/79,315.08 = 30,715.93/x
  3. Step 3: Cross multiply
    52,957.72x = 79,315.08 × 30,715.93
  4. Step 4: Simplify right side
    52,957.72x = 2,436,236,445.22
  5. Step 5: Solve for x
    x = 2,436,236,445.22/52,957.72
  6. Step 6: Final answer
    x = 46,003.42

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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.