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Finding the Fourth Proportional to 49,695.69, 68,580.02 and 28,487.26

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Solution

The fourth proportional to 49,695.69, 68,580.02 and 28,487.26 is: 39,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,695.69 : 68,580.02 = 28,487.26 : x
  2. Step 2: Convert to fraction form
    49,695.69/68,580.02 = 28,487.26/x
  3. Step 3: Cross multiply
    49,695.69x = 68,580.02 × 28,487.26
  4. Step 4: Simplify right side
    49,695.69x = 1,953,656,860.55
  5. Step 5: Solve for x
    x = 1,953,656,860.55/49,695.69
  6. Step 6: Final answer
    x = 39,312.40

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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.