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Finding the Fourth Proportional to 64,369.68, 88,828.64 and 35,689.20

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Solution

The fourth proportional to 64,369.68, 88,828.64 and 35,689.20 is: 49,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,369.68 : 88,828.64 = 35,689.20 : x
  2. Step 2: Convert to fraction form
    64,369.68/88,828.64 = 35,689.20/x
  3. Step 3: Cross multiply
    64,369.68x = 88,828.64 × 35,689.20
  4. Step 4: Simplify right side
    64,369.68x = 3,170,223,098.69
  5. Step 5: Solve for x
    x = 3,170,223,098.69/64,369.68
  6. Step 6: Final answer
    x = 49,250.25

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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.