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Finding the Fourth Proportional to 11,921,662.76, 17,882,661.80 and 3,402,000.14

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Solution

The fourth proportional to 11,921,662.76, 17,882,661.80 and 3,402,000.14 is: 5,103,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921,662.76 : 17,882,661.80 = 3,402,000.14 : x
  2. Step 2: Convert to fraction form
    11,921,662.76/17,882,661.80 = 3,402,000.14/x
  3. Step 3: Cross multiply
    11,921,662.76x = 17,882,661.80 × 3,402,000.14
  4. Step 4: Simplify right side
    11,921,662.76x = 60,836,817,866,264.34
  5. Step 5: Solve for x
    x = 60,836,817,866,264.34/11,921,662.76
  6. Step 6: Final answer
    x = 5,103,048.05

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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.