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Finding the Fourth Proportional to 69,761.79, 96,272.28 and 37,931.22

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Solution

The fourth proportional to 69,761.79, 96,272.28 and 37,931.22 is: 52,345.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,761.79 : 96,272.28 = 37,931.22 : x
  2. Step 2: Convert to fraction form
    69,761.79/96,272.28 = 37,931.22/x
  3. Step 3: Cross multiply
    69,761.79x = 96,272.28 × 37,931.22
  4. Step 4: Simplify right side
    69,761.79x = 3,651,725,032.58
  5. Step 5: Solve for x
    x = 3,651,725,032.58/69,761.79
  6. Step 6: Final answer
    x = 52,345.63

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1.5x scale

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.