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Finding the Fourth Proportional to 64,281.09, 88,707.93 and 35,987.39

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Solution

The fourth proportional to 64,281.09, 88,707.93 and 35,987.39 is: 49,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,281.09 : 88,707.93 = 35,987.39 : x
  2. Step 2: Convert to fraction form
    64,281.09/88,707.93 = 35,987.39/x
  3. Step 3: Cross multiply
    64,281.09x = 88,707.93 × 35,987.39
  4. Step 4: Simplify right side
    64,281.09x = 3,192,366,627.17
  5. Step 5: Solve for x
    x = 3,192,366,627.17/64,281.09
  6. Step 6: Final answer
    x = 49,662.61

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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.