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Finding the Fourth Proportional to 10,368,845.70, 15,553,268.55 and 4,689,255.30

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Solution

The fourth proportional to 10,368,845.70, 15,553,268.55 and 4,689,255.30 is: 7,033,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368,845.70 : 15,553,268.55 = 4,689,255.30 : x
  2. Step 2: Convert to fraction form
    10,368,845.70/15,553,268.55 = 4,689,255.30/x
  3. Step 3: Cross multiply
    10,368,845.70x = 15,553,268.55 × 4,689,255.30
  4. Step 4: Simplify right side
    10,368,845.70x = 72,933,246,980,410.81
  5. Step 5: Solve for x
    x = 72,933,246,980,410.81/10,368,845.70
  6. Step 6: Final answer
    x = 7,033,882.95

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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.