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Finding the Fourth Proportional to 52,420.65, 72,338.03 and 29,756.65

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Solution

The fourth proportional to 52,420.65, 72,338.03 and 29,756.65 is: 41,062.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,420.65 : 72,338.03 = 29,756.65 : x
  2. Step 2: Convert to fraction form
    52,420.65/72,338.03 = 29,756.65/x
  3. Step 3: Cross multiply
    52,420.65x = 72,338.03 × 29,756.65
  4. Step 4: Simplify right side
    52,420.65x = 2,152,537,440.40
  5. Step 5: Solve for x
    x = 2,152,537,440.40/52,420.65
  6. Step 6: Final answer
    x = 41,062.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.