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Finding the Fourth Proportional to 30,914,793.90, 46,372,190.85 and 18,149,712.30

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Solution

The fourth proportional to 30,914,793.90, 46,372,190.85 and 18,149,712.30 is: 27,224,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,914,793.90 : 46,372,190.85 = 18,149,712.30 : x
  2. Step 2: Convert to fraction form
    30,914,793.90/46,372,190.85 = 18,149,712.30/x
  3. Step 3: Cross multiply
    30,914,793.90x = 46,372,190.85 × 18,149,712.30
  4. Step 4: Simplify right side
    30,914,793.90x = 841,641,922,648,192.50
  5. Step 5: Solve for x
    x = 841,641,922,648,192.50/30,914,793.90
  6. Step 6: Final answer
    x = 27,224,568.45

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Double scale
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1.5x scale

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.