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Finding the Fourth Proportional to 67,999.84, 93,835.22 and 39,317.34

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Solution

The fourth proportional to 67,999.84, 93,835.22 and 39,317.34 is: 54,255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,999.84 : 93,835.22 = 39,317.34 : x
  2. Step 2: Convert to fraction form
    67,999.84/93,835.22 = 39,317.34/x
  3. Step 3: Cross multiply
    67,999.84x = 93,835.22 × 39,317.34
  4. Step 4: Simplify right side
    67,999.84x = 3,689,351,248.71
  5. Step 5: Solve for x
    x = 3,689,351,248.71/67,999.84
  6. Step 6: Final answer
    x = 54,255.29

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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.