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Finding the Fourth Proportional to 47,215.80, 70,823.70 and 32,470.20

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Solution

The fourth proportional to 47,215.80, 70,823.70 and 32,470.20 is: 48,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,215.80 : 70,823.70 = 32,470.20 : x
  2. Step 2: Convert to fraction form
    47,215.80/70,823.70 = 32,470.20/x
  3. Step 3: Cross multiply
    47,215.80x = 70,823.70 × 32,470.20
  4. Step 4: Simplify right side
    47,215.80x = 2,299,659,703.74
  5. Step 5: Solve for x
    x = 2,299,659,703.74/47,215.80
  6. Step 6: Final answer
    x = 48,705.30

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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.