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Finding the Third Proportional to 20,572,493.91 and 28,020,698.30

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Solution

The third proportional to 20,572,493.91 and 28,020,698.30 is: 38,165,500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572,493.91 : 28,020,698.30 = 28,020,698.30 : x
  2. Step 2: Convert to fraction form
    20,572,493.91/28,020,698.30 = 28,020,698.30/x
  3. Step 3: Cross multiply
    20,572,493.91x = 28,020,698.30 × 28,020,698.30
  4. Step 4: Simplify right side
    20,572,493.91x = 785,159,533,044,493.50
  5. Step 5: Solve for x
    x = 785,159,533,044,493.50/20,572,493.91
  6. Step 6: Final answer
    x = 38,165,500.82

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.