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Finding the Fourth Proportional to 19,253,399.90, 28,838,109.45 and 19,253,399.90

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Solution

The fourth proportional to 19,253,399.90, 28,838,109.45 and 19,253,399.90 is: 28,838,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,253,399.90 : 28,838,109.45 = 19,253,399.90 : x
  2. Step 2: Convert to fraction form
    19,253,399.90/28,838,109.45 = 19,253,399.90/x
  3. Step 3: Cross multiply
    19,253,399.90x = 28,838,109.45 × 19,253,399.90
  4. Step 4: Simplify right side
    19,253,399.90x = 555,231,653,600,819
  5. Step 5: Solve for x
    x = 555,231,653,600,819/19,253,399.90
  6. Step 6: Final answer
    x = 28,838,109.45

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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.