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Finding the Fourth Proportional to 79,042.40, 118,552.80 and 23,638.40

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Solution

The fourth proportional to 79,042.40, 118,552.80 and 23,638.40 is: 35,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,042.40 : 118,552.80 = 23,638.40 : x
  2. Step 2: Convert to fraction form
    79,042.40/118,552.80 = 23,638.40/x
  3. Step 3: Cross multiply
    79,042.40x = 118,552.80 × 23,638.40
  4. Step 4: Simplify right side
    79,042.40x = 2,802,398,507.52
  5. Step 5: Solve for x
    x = 2,802,398,507.52/79,042.40
  6. Step 6: Final answer
    x = 35,454.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.