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Finding the Fourth Proportional to 74,020.32, 110,978.64 and 27,267.12

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Solution

The fourth proportional to 74,020.32, 110,978.64 and 27,267.12 is: 40,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,020.32 : 110,978.64 = 27,267.12 : x
  2. Step 2: Convert to fraction form
    74,020.32/110,978.64 = 27,267.12/x
  3. Step 3: Cross multiply
    74,020.32x = 110,978.64 × 27,267.12
  4. Step 4: Simplify right side
    74,020.32x = 3,026,067,894.32
  5. Step 5: Solve for x
    x = 3,026,067,894.32/74,020.32
  6. Step 6: Final answer
    x = 40,881.58

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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.