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Finding the Fourth Proportional to 7,136,507.33, 9,848,129.65 and 3,873,256.38

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Solution

The fourth proportional to 7,136,507.33, 9,848,129.65 and 3,873,256.38 is: 5,344,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,507.33 : 9,848,129.65 = 3,873,256.38 : x
  2. Step 2: Convert to fraction form
    7,136,507.33/9,848,129.65 = 3,873,256.38/x
  3. Step 3: Cross multiply
    7,136,507.33x = 9,848,129.65 × 3,873,256.38
  4. Step 4: Simplify right side
    7,136,507.33x = 38,144,330,988,246.53
  5. Step 5: Solve for x
    x = 38,144,330,988,246.53/7,136,507.33
  6. Step 6: Final answer
    x = 5,344,957.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.