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Finding the Fourth Proportional to 47,221.80, 70,832.70 and 44,111.40

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Solution

The fourth proportional to 47,221.80, 70,832.70 and 44,111.40 is: 66,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,221.80 : 70,832.70 = 44,111.40 : x
  2. Step 2: Convert to fraction form
    47,221.80/70,832.70 = 44,111.40/x
  3. Step 3: Cross multiply
    47,221.80x = 70,832.70 × 44,111.40
  4. Step 4: Simplify right side
    47,221.80x = 3,124,529,562.78
  5. Step 5: Solve for x
    x = 3,124,529,562.78/47,221.80
  6. Step 6: Final answer
    x = 66,167.10

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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.