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Finding the Fourth Proportional to 47,475, 65,515.50 and 28,616.04

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Solution

The fourth proportional to 47,475, 65,515.50 and 28,616.04 is: 39,490.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,475 : 65,515.50 = 28,616.04 : x
  2. Step 2: Convert to fraction form
    47,475/65,515.50 = 28,616.04/x
  3. Step 3: Cross multiply
    47,475x = 65,515.50 × 28,616.04
  4. Step 4: Simplify right side
    47,475x = 1,874,794,168.62
  5. Step 5: Solve for x
    x = 1,874,794,168.62/47,475
  6. Step 6: Final answer
    x = 39,490.14

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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.