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Finding the Fourth Proportional to 65,915.68, 98,827.44 and 39,630.88

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Solution

The fourth proportional to 65,915.68, 98,827.44 and 39,630.88 is: 59,418.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.68 : 98,827.44 = 39,630.88 : x
  2. Step 2: Convert to fraction form
    65,915.68/98,827.44 = 39,630.88/x
  3. Step 3: Cross multiply
    65,915.68x = 98,827.44 × 39,630.88
  4. Step 4: Simplify right side
    65,915.68x = 3,916,618,415.35
  5. Step 5: Solve for x
    x = 3,916,618,415.35/65,915.68
  6. Step 6: Final answer
    x = 59,418.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.