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Finding the Fourth Proportional to 63,571.18, 87,728.10 and 35,276.80

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Solution

The fourth proportional to 63,571.18, 87,728.10 and 35,276.80 is: 48,681.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,571.18 : 87,728.10 = 35,276.80 : x
  2. Step 2: Convert to fraction form
    63,571.18/87,728.10 = 35,276.80/x
  3. Step 3: Cross multiply
    63,571.18x = 87,728.10 × 35,276.80
  4. Step 4: Simplify right side
    63,571.18x = 3,094,766,638.08
  5. Step 5: Solve for x
    x = 3,094,766,638.08/63,571.18
  6. Step 6: Final answer
    x = 48,681.91

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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.