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Finding the Fourth Proportional to 64,013.70, 96,020.55 and 40,340.10

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Solution

The fourth proportional to 64,013.70, 96,020.55 and 40,340.10 is: 60,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,013.70 : 96,020.55 = 40,340.10 : x
  2. Step 2: Convert to fraction form
    64,013.70/96,020.55 = 40,340.10/x
  3. Step 3: Cross multiply
    64,013.70x = 96,020.55 × 40,340.10
  4. Step 4: Simplify right side
    64,013.70x = 3,873,478,589.06
  5. Step 5: Solve for x
    x = 3,873,478,589.06/64,013.70
  6. Step 6: Final answer
    x = 60,510.15

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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.