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Finding the Fourth Proportional to 18,441,619.60, 27,662,429.40 and 11,267,166.10

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Solution

The fourth proportional to 18,441,619.60, 27,662,429.40 and 11,267,166.10 is: 16,900,749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,619.60 : 27,662,429.40 = 11,267,166.10 : x
  2. Step 2: Convert to fraction form
    18,441,619.60/27,662,429.40 = 11,267,166.10/x
  3. Step 3: Cross multiply
    18,441,619.60x = 27,662,429.40 × 11,267,166.10
  4. Step 4: Simplify right side
    18,441,619.60x = 311,677,186,779,323.31
  5. Step 5: Solve for x
    x = 311,677,186,779,323.31/18,441,619.60
  6. Step 6: Final answer
    x = 16,900,749.15

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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.