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Finding the Fourth Proportional to 7,043,294.81, 9,719,725.16 and 3,903,758.65

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Solution

The fourth proportional to 7,043,294.81, 9,719,725.16 and 3,903,758.65 is: 5,387,174.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043,294.81 : 9,719,725.16 = 3,903,758.65 : x
  2. Step 2: Convert to fraction form
    7,043,294.81/9,719,725.16 = 3,903,758.65/x
  3. Step 3: Cross multiply
    7,043,294.81x = 9,719,725.16 × 3,903,758.65
  4. Step 4: Simplify right side
    7,043,294.81x = 37,943,461,168,972.63
  5. Step 5: Solve for x
    x = 37,943,461,168,972.63/7,043,294.81
  6. Step 6: Final answer
    x = 5,387,174.92

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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.