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Finding the Fourth Proportional to 12,581,448.30, 18,845,600.40 and 12,581,448.30

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Solution

The fourth proportional to 12,581,448.30, 18,845,600.40 and 12,581,448.30 is: 18,845,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581,448.30 : 18,845,600.40 = 12,581,448.30 : x
  2. Step 2: Convert to fraction form
    12,581,448.30/18,845,600.40 = 12,581,448.30/x
  3. Step 3: Cross multiply
    12,581,448.30x = 18,845,600.40 × 12,581,448.30
  4. Step 4: Simplify right side
    12,581,448.30x = 237,104,947,115,059.31
  5. Step 5: Solve for x
    x = 237,104,947,115,059.31/12,581,448.30
  6. Step 6: Final answer
    x = 18,845,600.40

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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.