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Finding the Fourth Proportional to 17,715,438.40, 26,531,167.20 and 17,715,438.40

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Solution

The fourth proportional to 17,715,438.40, 26,531,167.20 and 17,715,438.40 is: 26,531,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,715,438.40 : 26,531,167.20 = 17,715,438.40 : x
  2. Step 2: Convert to fraction form
    17,715,438.40/26,531,167.20 = 17,715,438.40/x
  3. Step 3: Cross multiply
    17,715,438.40x = 26,531,167.20 × 17,715,438.40
  4. Step 4: Simplify right side
    17,715,438.40x = 470,011,258,211,700.44
  5. Step 5: Solve for x
    x = 470,011,258,211,700.44/17,715,438.40
  6. Step 6: Final answer
    x = 26,531,167.20

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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.