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Finding the Fourth Proportional to 4,893,986.30, 7,340,979.45 and 4,893,986.30

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Solution

The fourth proportional to 4,893,986.30, 7,340,979.45 and 4,893,986.30 is: 7,340,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893,986.30 : 7,340,979.45 = 4,893,986.30 : x
  2. Step 2: Convert to fraction form
    4,893,986.30/7,340,979.45 = 4,893,986.30/x
  3. Step 3: Cross multiply
    4,893,986.30x = 7,340,979.45 × 4,893,986.30
  4. Step 4: Simplify right side
    4,893,986.30x = 35,926,652,856,881.53
  5. Step 5: Solve for x
    x = 35,926,652,856,881.53/4,893,986.30
  6. Step 6: Final answer
    x = 7,340,979.45

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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.