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Finding the Fourth Proportional to 8,853,009.20, 13,258,518.60 and 8,853,009.20

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Solution

The fourth proportional to 8,853,009.20, 13,258,518.60 and 8,853,009.20 is: 13,258,518.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853,009.20 : 13,258,518.60 = 8,853,009.20 : x
  2. Step 2: Convert to fraction form
    8,853,009.20/13,258,518.60 = 8,853,009.20/x
  3. Step 3: Cross multiply
    8,853,009.20x = 13,258,518.60 × 8,853,009.20
  4. Step 4: Simplify right side
    8,853,009.20x = 117,377,787,144,171.11
  5. Step 5: Solve for x
    x = 117,377,787,144,171.11/8,853,009.20
  6. Step 6: Final answer
    x = 13,258,518.60

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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.