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Finding the Fourth Proportional to 20,232,480.70, 30,348,721.05 and 20,232,480.70

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Solution

The fourth proportional to 20,232,480.70, 30,348,721.05 and 20,232,480.70 is: 30,348,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232,480.70 : 30,348,721.05 = 20,232,480.70 : x
  2. Step 2: Convert to fraction form
    20,232,480.70/30,348,721.05 = 20,232,480.70/x
  3. Step 3: Cross multiply
    20,232,480.70x = 30,348,721.05 × 20,232,480.70
  4. Step 4: Simplify right side
    20,232,480.70x = 614,029,912,913,808.75
  5. Step 5: Solve for x
    x = 614,029,912,913,808.75/20,232,480.70
  6. Step 6: Final answer
    x = 30,348,721.05

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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.