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Finding the Fourth Proportional to 8,965,683.64, 12,372,601.80 and 4,891,302.64

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Solution

The fourth proportional to 8,965,683.64, 12,372,601.80 and 4,891,302.64 is: 6,749,974.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965,683.64 : 12,372,601.80 = 4,891,302.64 : x
  2. Step 2: Convert to fraction form
    8,965,683.64/12,372,601.80 = 4,891,302.64/x
  3. Step 3: Cross multiply
    8,965,683.64x = 12,372,601.80 × 4,891,302.64
  4. Step 4: Simplify right side
    8,965,683.64x = 60,518,139,848,008.75
  5. Step 5: Solve for x
    x = 60,518,139,848,008.75/8,965,683.64
  6. Step 6: Final answer
    x = 6,749,974.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.