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Finding the Fourth Proportional to 62,886.71, 86,784.78 and 34,207.01

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Solution

The fourth proportional to 62,886.71, 86,784.78 and 34,207.01 is: 47,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,886.71 : 86,784.78 = 34,207.01 : x
  2. Step 2: Convert to fraction form
    62,886.71/86,784.78 = 34,207.01/x
  3. Step 3: Cross multiply
    62,886.71x = 86,784.78 × 34,207.01
  4. Step 4: Simplify right side
    62,886.71x = 2,968,647,403.38
  5. Step 5: Solve for x
    x = 2,968,647,403.38/62,886.71
  6. Step 6: Final answer
    x = 47,206.28

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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.