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Finding the Fourth Proportional to 18,494,530.40, 25,949,029.60 and 18,494,530.40

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Solution

The fourth proportional to 18,494,530.40, 25,949,029.60 and 18,494,530.40 is: 25,949,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494,530.40 : 25,949,029.60 = 18,494,530.40 : x
  2. Step 2: Convert to fraction form
    18,494,530.40/25,949,029.60 = 18,494,530.40/x
  3. Step 3: Cross multiply
    18,494,530.40x = 25,949,029.60 × 18,494,530.40
  4. Step 4: Simplify right side
    18,494,530.40x = 479,915,116,787,699.81
  5. Step 5: Solve for x
    x = 479,915,116,787,699.81/18,494,530.40
  6. Step 6: Final answer
    x = 25,949,029.60

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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.