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Finding the Fourth Proportional to 9,992,737.60, 14,978,371.20 and 4,315,635.52

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Solution

The fourth proportional to 9,992,737.60, 14,978,371.20 and 4,315,635.52 is: 6,468,816.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992,737.60 : 14,978,371.20 = 4,315,635.52 : x
  2. Step 2: Convert to fraction form
    9,992,737.60/14,978,371.20 = 4,315,635.52/x
  3. Step 3: Cross multiply
    9,992,737.60x = 14,978,371.20 × 4,315,635.52
  4. Step 4: Simplify right side
    9,992,737.60x = 64,641,190,782,465.02
  5. Step 5: Solve for x
    x = 64,641,190,782,465.02/9,992,737.60
  6. Step 6: Final answer
    x = 6,468,816.99

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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.