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Finding the Fourth Proportional to 64,128.20, 96,240.90 and 41,934.20

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Solution

The fourth proportional to 64,128.20, 96,240.90 and 41,934.20 is: 62,933.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,128.20 : 96,240.90 = 41,934.20 : x
  2. Step 2: Convert to fraction form
    64,128.20/96,240.90 = 41,934.20/x
  3. Step 3: Cross multiply
    64,128.20x = 96,240.90 × 41,934.20
  4. Step 4: Simplify right side
    64,128.20x = 4,035,785,148.78
  5. Step 5: Solve for x
    x = 4,035,785,148.78/64,128.20
  6. Step 6: Final answer
    x = 62,933.08

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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.