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Finding the Fourth Proportional to 37,297.40, 51,470.42 and 20,530.40

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Solution

The fourth proportional to 37,297.40, 51,470.42 and 20,530.40 is: 28,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,297.40 : 51,470.42 = 20,530.40 : x
  2. Step 2: Convert to fraction form
    37,297.40/51,470.42 = 20,530.40/x
  3. Step 3: Cross multiply
    37,297.40x = 51,470.42 × 20,530.40
  4. Step 4: Simplify right side
    37,297.40x = 1,056,707,950.76
  5. Step 5: Solve for x
    x = 1,056,707,950.76/37,297.40
  6. Step 6: Final answer
    x = 28,331.95

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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.