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Finding the Fourth Proportional to 11,800,929.60, 17,701,394.40 and 10,415,246.40

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Solution

The fourth proportional to 11,800,929.60, 17,701,394.40 and 10,415,246.40 is: 15,622,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800,929.60 : 17,701,394.40 = 10,415,246.40 : x
  2. Step 2: Convert to fraction form
    11,800,929.60/17,701,394.40 = 10,415,246.40/x
  3. Step 3: Cross multiply
    11,800,929.60x = 17,701,394.40 × 10,415,246.40
  4. Step 4: Simplify right side
    11,800,929.60x = 184,364,384,299,580.16
  5. Step 5: Solve for x
    x = 184,364,384,299,580.16/11,800,929.60
  6. Step 6: Final answer
    x = 15,622,869.60

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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.