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Finding the Fourth Proportional to 31,335.92, 46,742.56 and 28,346.48

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Solution

The fourth proportional to 31,335.92, 46,742.56 and 28,346.48 is: 42,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.92 : 46,742.56 = 28,346.48 : x
  2. Step 2: Convert to fraction form
    31,335.92/46,742.56 = 28,346.48/x
  3. Step 3: Cross multiply
    31,335.92x = 46,742.56 × 28,346.48
  4. Step 4: Simplify right side
    31,335.92x = 1,324,987,042.19
  5. Step 5: Solve for x
    x = 1,324,987,042.19/31,335.92
  6. Step 6: Final answer
    x = 42,283.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.