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Finding the Fourth Proportional to 18,565,605.60, 27,848,408.40 and 16,969,970.40

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Solution

The fourth proportional to 18,565,605.60, 27,848,408.40 and 16,969,970.40 is: 25,454,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565,605.60 : 27,848,408.40 = 16,969,970.40 : x
  2. Step 2: Convert to fraction form
    18,565,605.60/27,848,408.40 = 16,969,970.40/x
  3. Step 3: Cross multiply
    18,565,605.60x = 27,848,408.40 × 16,969,970.40
  4. Step 4: Simplify right side
    18,565,605.60x = 472,586,666,235,111.31
  5. Step 5: Solve for x
    x = 472,586,666,235,111.31/18,565,605.60
  6. Step 6: Final answer
    x = 25,454,955.60

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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.