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Finding the Fourth Proportional to 28,865,606.88, 39,825,164.88 and 19,682,306.40

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Solution

The fourth proportional to 28,865,606.88, 39,825,164.88 and 19,682,306.40 is: 27,155,192.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865,606.88 : 39,825,164.88 = 19,682,306.40 : x
  2. Step 2: Convert to fraction form
    28,865,606.88/39,825,164.88 = 19,682,306.40/x
  3. Step 3: Cross multiply
    28,865,606.88x = 39,825,164.88 × 19,682,306.40
  4. Step 4: Simplify right side
    28,865,606.88x = 783,851,097,598,679.25
  5. Step 5: Solve for x
    x = 783,851,097,598,679.25/28,865,606.88
  6. Step 6: Final answer
    x = 27,155,192.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.