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Finding the Fourth Proportional to 12,515,793.90, 17,547,305.70 and 12,515,793.90

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Solution

The fourth proportional to 12,515,793.90, 17,547,305.70 and 12,515,793.90 is: 17,547,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515,793.90 : 17,547,305.70 = 12,515,793.90 : x
  2. Step 2: Convert to fraction form
    12,515,793.90/17,547,305.70 = 12,515,793.90/x
  3. Step 3: Cross multiply
    12,515,793.90x = 17,547,305.70 × 12,515,793.90
  4. Step 4: Simplify right side
    12,515,793.90x = 219,618,461,641,495.22
  5. Step 5: Solve for x
    x = 219,618,461,641,495.22/12,515,793.90
  6. Step 6: Final answer
    x = 17,547,305.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.