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Finding the Fourth Proportional to 32,752.75, 49,129.13 and 8,128.75

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Solution

The fourth proportional to 32,752.75, 49,129.13 and 8,128.75 is: 12,193.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,752.75 : 49,129.13 = 8,128.75 : x
  2. Step 2: Convert to fraction form
    32,752.75/49,129.13 = 8,128.75/x
  3. Step 3: Cross multiply
    32,752.75x = 49,129.13 × 8,128.75
  4. Step 4: Simplify right side
    32,752.75x = 399,358,415.49
  5. Step 5: Solve for x
    x = 399,358,415.49/32,752.75
  6. Step 6: Final answer
    x = 12,193.13

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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.