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Finding the Fourth Proportional to 64,409.65, 88,886.97 and 35,729.78

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Solution

The fourth proportional to 64,409.65, 88,886.97 and 35,729.78 is: 49,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,409.65 : 88,886.97 = 35,729.78 : x
  2. Step 2: Convert to fraction form
    64,409.65/88,886.97 = 35,729.78/x
  3. Step 3: Cross multiply
    64,409.65x = 88,886.97 × 35,729.78
  4. Step 4: Simplify right side
    64,409.65x = 3,175,911,438.53
  5. Step 5: Solve for x
    x = 3,175,911,438.53/64,409.65
  6. Step 6: Final answer
    x = 49,308.01

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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.