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Finding the Fourth Proportional to 69,393, 95,762.34 and 39,585

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Solution

The fourth proportional to 69,393, 95,762.34 and 39,585 is: 54,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,393 : 95,762.34 = 39,585 : x
  2. Step 2: Convert to fraction form
    69,393/95,762.34 = 39,585/x
  3. Step 3: Cross multiply
    69,393x = 95,762.34 × 39,585
  4. Step 4: Simplify right side
    69,393x = 3,790,752,228.90
  5. Step 5: Solve for x
    x = 3,790,752,228.90/69,393
  6. Step 6: Final answer
    x = 54,627.30

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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.