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Finding the Fourth Proportional to 31,574.39, 47,361.63 and 9,387.99

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Solution

The fourth proportional to 31,574.39, 47,361.63 and 9,387.99 is: 14,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,574.39 : 47,361.63 = 9,387.99 : x
  2. Step 2: Convert to fraction form
    31,574.39/47,361.63 = 9,387.99/x
  3. Step 3: Cross multiply
    31,574.39x = 47,361.63 × 9,387.99
  4. Step 4: Simplify right side
    31,574.39x = 444,630,508.82
  5. Step 5: Solve for x
    x = 444,630,508.82/31,574.39
  6. Step 6: Final answer
    x = 14,082.00

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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.