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Finding the Fourth Proportional to 47,474.91, 65,497.01 and 30,474.63

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Solution

The fourth proportional to 47,474.91, 65,497.01 and 30,474.63 is: 42,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,474.91 : 65,497.01 = 30,474.63 : x
  2. Step 2: Convert to fraction form
    47,474.91/65,497.01 = 30,474.63/x
  3. Step 3: Cross multiply
    47,474.91x = 65,497.01 × 30,474.63
  4. Step 4: Simplify right side
    47,474.91x = 1,995,996,993.48
  5. Step 5: Solve for x
    x = 1,995,996,993.48/47,474.91
  6. Step 6: Final answer
    x = 42,043.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.