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Finding the Fourth Proportional to 22,605,347.70, 33,908,021.55 and 20,621,301.30

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Solution

The fourth proportional to 22,605,347.70, 33,908,021.55 and 20,621,301.30 is: 30,931,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,605,347.70 : 33,908,021.55 = 20,621,301.30 : x
  2. Step 2: Convert to fraction form
    22,605,347.70/33,908,021.55 = 20,621,301.30/x
  3. Step 3: Cross multiply
    22,605,347.70x = 33,908,021.55 × 20,621,301.30
  4. Step 4: Simplify right side
    22,605,347.70x = 699,227,528,869,443
  5. Step 5: Solve for x
    x = 699,227,528,869,443/22,605,347.70
  6. Step 6: Final answer
    x = 30,931,951.95

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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.