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Finding the Fourth Proportional to 4,384.70, 6,545.07 and 3,831.11

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Solution

The fourth proportional to 4,384.70, 6,545.07 and 3,831.11 is: 5,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,384.70 : 6,545.07 = 3,831.11 : x
  2. Step 2: Convert to fraction form
    4,384.70/6,545.07 = 3,831.11/x
  3. Step 3: Cross multiply
    4,384.70x = 6,545.07 × 3,831.11
  4. Step 4: Simplify right side
    4,384.70x = 25,074,883.13
  5. Step 5: Solve for x
    x = 25,074,883.13/4,384.70
  6. Step 6: Final answer
    x = 5,718.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.