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Finding the Fourth Proportional to 71,515.60, 98,696.22 and 41,302.20

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Solution

The fourth proportional to 71,515.60, 98,696.22 and 41,302.20 is: 56,999.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,515.60 : 98,696.22 = 41,302.20 : x
  2. Step 2: Convert to fraction form
    71,515.60/98,696.22 = 41,302.20/x
  3. Step 3: Cross multiply
    71,515.60x = 98,696.22 × 41,302.20
  4. Step 4: Simplify right side
    71,515.60x = 4,076,371,017.68
  5. Step 5: Solve for x
    x = 4,076,371,017.68/71,515.60
  6. Step 6: Final answer
    x = 56,999.75

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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.