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Finding the Fourth Proportional to 74,671.90, 112,004.20 and 27,921.12

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Solution

The fourth proportional to 74,671.90, 112,004.20 and 27,921.12 is: 41,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,671.90 : 112,004.20 = 27,921.12 : x
  2. Step 2: Convert to fraction form
    74,671.90/112,004.20 = 27,921.12/x
  3. Step 3: Cross multiply
    74,671.90x = 112,004.20 × 27,921.12
  4. Step 4: Simplify right side
    74,671.90x = 3,127,282,708.70
  5. Step 5: Solve for x
    x = 3,127,282,708.70/74,671.90
  6. Step 6: Final answer
    x = 41,880.32

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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.