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Finding the Fourth Proportional to 17,392,946.90, 26,064,537.15 and 12,808,217.30

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Solution

The fourth proportional to 17,392,946.90, 26,064,537.15 and 12,808,217.30 is: 19,194,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,392,946.90 : 26,064,537.15 = 12,808,217.30 : x
  2. Step 2: Convert to fraction form
    17,392,946.90/26,064,537.15 = 12,808,217.30/x
  3. Step 3: Cross multiply
    17,392,946.90x = 26,064,537.15 × 12,808,217.30
  4. Step 4: Simplify right side
    17,392,946.90x = 333,840,255,641,122.69
  5. Step 5: Solve for x
    x = 333,840,255,641,122.69/17,392,946.90
  6. Step 6: Final answer
    x = 19,194,001.89

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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.