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Finding the Fourth Proportional to 35,017.75, 48,310.72 and 21,565.65

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Solution

The fourth proportional to 35,017.75, 48,310.72 and 21,565.65 is: 29,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,017.75 : 48,310.72 = 21,565.65 : x
  2. Step 2: Convert to fraction form
    35,017.75/48,310.72 = 21,565.65/x
  3. Step 3: Cross multiply
    35,017.75x = 48,310.72 × 21,565.65
  4. Step 4: Simplify right side
    35,017.75x = 1,041,852,078.77
  5. Step 5: Solve for x
    x = 1,041,852,078.77/35,017.75
  6. Step 6: Final answer
    x = 29,752.11

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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.