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Finding the Fourth Proportional to 71,597.84, 98,808.32 and 39,766.88

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Solution

The fourth proportional to 71,597.84, 98,808.32 and 39,766.88 is: 54,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,597.84 : 98,808.32 = 39,766.88 : x
  2. Step 2: Convert to fraction form
    71,597.84/98,808.32 = 39,766.88/x
  3. Step 3: Cross multiply
    71,597.84x = 98,808.32 × 39,766.88
  4. Step 4: Simplify right side
    71,597.84x = 3,929,298,604.44
  5. Step 5: Solve for x
    x = 3,929,298,604.44/71,597.84
  6. Step 6: Final answer
    x = 54,880.13

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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.