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Finding the Fourth Proportional to 37,297.80, 55,946.70 and 31,392.90

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Solution

The fourth proportional to 37,297.80, 55,946.70 and 31,392.90 is: 47,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,297.80 : 55,946.70 = 31,392.90 : x
  2. Step 2: Convert to fraction form
    37,297.80/55,946.70 = 31,392.90/x
  3. Step 3: Cross multiply
    37,297.80x = 55,946.70 × 31,392.90
  4. Step 4: Simplify right side
    37,297.80x = 1,756,329,158.43
  5. Step 5: Solve for x
    x = 1,756,329,158.43/37,297.80
  6. Step 6: Final answer
    x = 47,089.35

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Similar ratio
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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.