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Finding the Fourth Proportional to 4,687,669.31, 7,066,639.01 and 4,375,188.24

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Solution

The fourth proportional to 4,687,669.31, 7,066,639.01 and 4,375,188.24 is: 6,595,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687,669.31 : 7,066,639.01 = 4,375,188.24 : x
  2. Step 2: Convert to fraction form
    4,687,669.31/7,066,639.01 = 4,375,188.24/x
  3. Step 3: Cross multiply
    4,687,669.31x = 7,066,639.01 × 4,375,188.24
  4. Step 4: Simplify right side
    4,687,669.31x = 30,917,875,871,001.30
  5. Step 5: Solve for x
    x = 30,917,875,871,001.30/4,687,669.31
  6. Step 6: Final answer
    x = 6,595,575.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.