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Finding the Fourth Proportional to 11,122,574.40, 16,662,866.40 and 5,712,811.20

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Solution

The fourth proportional to 11,122,574.40, 16,662,866.40 and 5,712,811.20 is: 8,558,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122,574.40 : 16,662,866.40 = 5,712,811.20 : x
  2. Step 2: Convert to fraction form
    11,122,574.40/16,662,866.40 = 5,712,811.20/x
  3. Step 3: Cross multiply
    11,122,574.40x = 16,662,866.40 × 5,712,811.20
  4. Step 4: Simplify right side
    11,122,574.40x = 95,191,809,794,023.69
  5. Step 5: Solve for x
    x = 95,191,809,794,023.69/11,122,574.40
  6. Step 6: Final answer
    x = 8,558,433.18

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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.