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Finding the Fourth Proportional to 31,603.77, 43,577.87 and 25,843.32

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Solution

The fourth proportional to 31,603.77, 43,577.87 and 25,843.32 is: 35,634.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,603.77 : 43,577.87 = 25,843.32 : x
  2. Step 2: Convert to fraction form
    31,603.77/43,577.87 = 25,843.32/x
  3. Step 3: Cross multiply
    31,603.77x = 43,577.87 × 25,843.32
  4. Step 4: Simplify right side
    31,603.77x = 1,126,196,710.11
  5. Step 5: Solve for x
    x = 1,126,196,710.11/31,603.77
  6. Step 6: Final answer
    x = 35,634.89

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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.