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Finding the Third Proportional to 2,714,957.81 and 3,989,330.63

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Solution

The third proportional to 2,714,957.81 and 3,989,330.63 is: 5,861,880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714,957.81 : 3,989,330.63 = 3,989,330.63 : x
  2. Step 2: Convert to fraction form
    2,714,957.81/3,989,330.63 = 3,989,330.63/x
  3. Step 3: Cross multiply
    2,714,957.81x = 3,989,330.63 × 3,989,330.63
  4. Step 4: Simplify right side
    2,714,957.81x = 15,914,758,835,562.89
  5. Step 5: Solve for x
    x = 15,914,758,835,562.89/2,714,957.81
  6. Step 6: Final answer
    x = 5,861,880.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.