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Finding the Fourth Proportional to 69,312.64, 95,649.28 and 39,097.52

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Solution

The fourth proportional to 69,312.64, 95,649.28 and 39,097.52 is: 53,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,312.64 : 95,649.28 = 39,097.52 : x
  2. Step 2: Convert to fraction form
    69,312.64/95,649.28 = 39,097.52/x
  3. Step 3: Cross multiply
    69,312.64x = 95,649.28 × 39,097.52
  4. Step 4: Simplify right side
    69,312.64x = 3,739,649,637.79
  5. Step 5: Solve for x
    x = 3,739,649,637.79/69,312.64
  6. Step 6: Final answer
    x = 53,953.36

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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.