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Finding the Fourth Proportional to 18,692,228.40, 27,991,103.40 and 14,913,092.40

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Solution

The fourth proportional to 18,692,228.40, 27,991,103.40 and 14,913,092.40 is: 22,331,950.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,228.40 : 27,991,103.40 = 14,913,092.40 : x
  2. Step 2: Convert to fraction form
    18,692,228.40/27,991,103.40 = 14,913,092.40/x
  3. Step 3: Cross multiply
    18,692,228.40x = 27,991,103.40 × 14,913,092.40
  4. Step 4: Simplify right side
    18,692,228.40x = 417,433,911,382,154.12
  5. Step 5: Solve for x
    x = 417,433,911,382,154.12/18,692,228.40
  6. Step 6: Final answer
    x = 22,331,950.07

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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.