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Finding the Fourth Proportional to 32,798.70, 49,185.90 and 10,612.80

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Solution

The fourth proportional to 32,798.70, 49,185.90 and 10,612.80 is: 15,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,798.70 : 49,185.90 = 10,612.80 : x
  2. Step 2: Convert to fraction form
    32,798.70/49,185.90 = 10,612.80/x
  3. Step 3: Cross multiply
    32,798.70x = 49,185.90 × 10,612.80
  4. Step 4: Simplify right side
    32,798.70x = 522,000,119.52
  5. Step 5: Solve for x
    x = 522,000,119.52/32,798.70
  6. Step 6: Final answer
    x = 15,915.27

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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.