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Finding the Fourth Proportional to 10,699,687.68, 16,050,749.30 and 3,879,472.80

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Solution

The fourth proportional to 10,699,687.68, 16,050,749.30 and 3,879,472.80 is: 5,819,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,699,687.68 : 16,050,749.30 = 3,879,472.80 : x
  2. Step 2: Convert to fraction form
    10,699,687.68/16,050,749.30 = 3,879,472.80/x
  3. Step 3: Cross multiply
    10,699,687.68x = 16,050,749.30 × 3,879,472.80
  4. Step 4: Simplify right side
    10,699,687.68x = 62,268,445,328,969.04
  5. Step 5: Solve for x
    x = 62,268,445,328,969.04/10,699,687.68
  6. Step 6: Final answer
    x = 5,819,650.74

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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.