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Finding the Fourth Proportional to 14,500,978.17, 20,010,950.69 and 7,974,607.62

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Solution

The fourth proportional to 14,500,978.17, 20,010,950.69 and 7,974,607.62 is: 11,004,739.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500,978.17 : 20,010,950.69 = 7,974,607.62 : x
  2. Step 2: Convert to fraction form
    14,500,978.17/20,010,950.69 = 7,974,607.62/x
  3. Step 3: Cross multiply
    14,500,978.17x = 20,010,950.69 × 7,974,607.62
  4. Step 4: Simplify right side
    14,500,978.17x = 159,579,479,906,125.62
  5. Step 5: Solve for x
    x = 159,579,479,906,125.62/14,500,978.17
  6. Step 6: Final answer
    x = 11,004,739.00

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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.