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Finding the Fourth Proportional to 62,899.38, 86,802.80 and 34,220.84

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Solution

The fourth proportional to 62,899.38, 86,802.80 and 34,220.84 is: 47,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,899.38 : 86,802.80 = 34,220.84 : x
  2. Step 2: Convert to fraction form
    62,899.38/86,802.80 = 34,220.84/x
  3. Step 3: Cross multiply
    62,899.38x = 86,802.80 × 34,220.84
  4. Step 4: Simplify right side
    62,899.38x = 2,970,464,125.23
  5. Step 5: Solve for x
    x = 2,970,464,125.23/62,899.38
  6. Step 6: Final answer
    x = 47,225.65

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1.5x scale

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.