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Finding the Fourth Proportional to 17,761,274.64, 26,652,540.64 and 7,663,895.64

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Solution

The fourth proportional to 17,761,274.64, 26,652,540.64 and 7,663,895.64 is: 11,500,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,761,274.64 : 26,652,540.64 = 7,663,895.64 : x
  2. Step 2: Convert to fraction form
    17,761,274.64/26,652,540.64 = 7,663,895.64/x
  3. Step 3: Cross multiply
    17,761,274.64x = 26,652,540.64 × 7,663,895.64
  4. Step 4: Simplify right side
    17,761,274.64x = 204,262,290,005,818.81
  5. Step 5: Solve for x
    x = 204,262,290,005,818.81/17,761,274.64
  6. Step 6: Final answer
    x = 11,500,429.68

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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.