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Finding the Fourth Proportional to 18,889,634.30, 26,495,876.50 and 18,889,634.30

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Solution

The fourth proportional to 18,889,634.30, 26,495,876.50 and 18,889,634.30 is: 26,495,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889,634.30 : 26,495,876.50 = 18,889,634.30 : x
  2. Step 2: Convert to fraction form
    18,889,634.30/26,495,876.50 = 18,889,634.30/x
  3. Step 3: Cross multiply
    18,889,634.30x = 26,495,876.50 × 18,889,634.30
  4. Step 4: Simplify right side
    18,889,634.30x = 500,497,417,542,964
  5. Step 5: Solve for x
    x = 500,497,417,542,964/18,889,634.30
  6. Step 6: Final answer
    x = 26,495,876.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.