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Finding the Fourth Proportional to 5,870,672.80, 8,806,009.20 and 5,177,831.20

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Solution

The fourth proportional to 5,870,672.80, 8,806,009.20 and 5,177,831.20 is: 7,766,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870,672.80 : 8,806,009.20 = 5,177,831.20 : x
  2. Step 2: Convert to fraction form
    5,870,672.80/8,806,009.20 = 5,177,831.20/x
  3. Step 3: Cross multiply
    5,870,672.80x = 8,806,009.20 × 5,177,831.20
  4. Step 4: Simplify right side
    5,870,672.80x = 45,596,029,183,247.04
  5. Step 5: Solve for x
    x = 45,596,029,183,247.04/5,870,672.80
  6. Step 6: Final answer
    x = 7,766,746.80

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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.