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Finding the Fourth Proportional to 13,569,622.80, 20,387,611.80 and 10,210,390.80

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Solution

The fourth proportional to 13,569,622.80, 20,387,611.80 and 10,210,390.80 is: 15,340,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569,622.80 : 20,387,611.80 = 10,210,390.80 : x
  2. Step 2: Convert to fraction form
    13,569,622.80/20,387,611.80 = 10,210,390.80/x
  3. Step 3: Cross multiply
    13,569,622.80x = 20,387,611.80 × 10,210,390.80
  4. Step 4: Simplify right side
    13,569,622.80x = 208,165,483,956,691.47
  5. Step 5: Solve for x
    x = 208,165,483,956,691.47/13,569,622.80
  6. Step 6: Final answer
    x = 15,340,550.51

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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.