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Finding the Fourth Proportional to 18,689,581.50, 25,791,622.47 and 10,104,877.50

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Solution

The fourth proportional to 18,689,581.50, 25,791,622.47 and 10,104,877.50 is: 13,944,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,581.50 : 25,791,622.47 = 10,104,877.50 : x
  2. Step 2: Convert to fraction form
    18,689,581.50/25,791,622.47 = 10,104,877.50/x
  3. Step 3: Cross multiply
    18,689,581.50x = 25,791,622.47 × 10,104,877.50
  4. Step 4: Simplify right side
    18,689,581.50x = 260,621,185,585,597.41
  5. Step 5: Solve for x
    x = 260,621,185,585,597.41/18,689,581.50
  6. Step 6: Final answer
    x = 13,944,730.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.