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Finding the Fourth Proportional to 64,284.64, 88,708.82 and 35,603.85

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Solution

The fourth proportional to 64,284.64, 88,708.82 and 35,603.85 is: 49,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,284.64 : 88,708.82 = 35,603.85 : x
  2. Step 2: Convert to fraction form
    64,284.64/88,708.82 = 35,603.85/x
  3. Step 3: Cross multiply
    64,284.64x = 88,708.82 × 35,603.85
  4. Step 4: Simplify right side
    64,284.64x = 3,158,375,314.51
  5. Step 5: Solve for x
    x = 3,158,375,314.51/64,284.64
  6. Step 6: Final answer
    x = 49,131.10

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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.