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Finding the Fourth Proportional to 47,173.85, 70,665.80 and 21,837.65

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Solution

The fourth proportional to 47,173.85, 70,665.80 and 21,837.65 is: 32,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,173.85 : 70,665.80 = 21,837.65 : x
  2. Step 2: Convert to fraction form
    47,173.85/70,665.80 = 21,837.65/x
  3. Step 3: Cross multiply
    47,173.85x = 70,665.80 × 21,837.65
  4. Step 4: Simplify right side
    47,173.85x = 1,543,174,898.18
  5. Step 5: Solve for x
    x = 1,543,174,898.18/47,173.85
  6. Step 6: Final answer
    x = 32,712.51

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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.