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Finding the Fourth Proportional to 21,803,998.80, 32,635,139.40 and 21,803,998.80

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Solution

The fourth proportional to 21,803,998.80, 32,635,139.40 and 21,803,998.80 is: 32,635,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,803,998.80 : 32,635,139.40 = 21,803,998.80 : x
  2. Step 2: Convert to fraction form
    21,803,998.80/32,635,139.40 = 21,803,998.80/x
  3. Step 3: Cross multiply
    21,803,998.80x = 32,635,139.40 × 21,803,998.80
  4. Step 4: Simplify right side
    21,803,998.80x = 711,576,540,315,432.75
  5. Step 5: Solve for x
    x = 711,576,540,315,432.75/21,803,998.80
  6. Step 6: Final answer
    x = 32,635,139.40

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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.