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Finding the Fourth Proportional to 64,603.74, 89,142.30 and 35,922.58

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Solution

The fourth proportional to 64,603.74, 89,142.30 and 35,922.58 is: 49,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,603.74 : 89,142.30 = 35,922.58 : x
  2. Step 2: Convert to fraction form
    64,603.74/89,142.30 = 35,922.58/x
  3. Step 3: Cross multiply
    64,603.74x = 89,142.30 × 35,922.58
  4. Step 4: Simplify right side
    64,603.74x = 3,202,221,403.13
  5. Step 5: Solve for x
    x = 3,202,221,403.13/64,603.74
  6. Step 6: Final answer
    x = 49,567.12

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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.