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Finding the Fourth Proportional to 39,102.68, 53,966.04 and 22,335.68

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Solution

The fourth proportional to 39,102.68, 53,966.04 and 22,335.68 is: 30,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,102.68 : 53,966.04 = 22,335.68 : x
  2. Step 2: Convert to fraction form
    39,102.68/53,966.04 = 22,335.68/x
  3. Step 3: Cross multiply
    39,102.68x = 53,966.04 × 22,335.68
  4. Step 4: Simplify right side
    39,102.68x = 1,205,368,200.31
  5. Step 5: Solve for x
    x = 1,205,368,200.31/39,102.68
  6. Step 6: Final answer
    x = 30,825.72

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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.