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Finding the Fourth Proportional to 64,239.70, 88,646.48 and 35,557.43

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Solution

The fourth proportional to 64,239.70, 88,646.48 and 35,557.43 is: 49,066.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,239.70 : 88,646.48 = 35,557.43 : x
  2. Step 2: Convert to fraction form
    64,239.70/88,646.48 = 35,557.43/x
  3. Step 3: Cross multiply
    64,239.70x = 88,646.48 × 35,557.43
  4. Step 4: Simplify right side
    64,239.70x = 3,152,040,386.33
  5. Step 5: Solve for x
    x = 3,152,040,386.33/64,239.70
  6. Step 6: Final answer
    x = 49,066.86

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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.