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Finding the Fourth Proportional to 31,844.18, 47,710.02 and 19,338.68

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Solution

The fourth proportional to 31,844.18, 47,710.02 and 19,338.68 is: 28,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,844.18 : 47,710.02 = 19,338.68 : x
  2. Step 2: Convert to fraction form
    31,844.18/47,710.02 = 19,338.68/x
  3. Step 3: Cross multiply
    31,844.18x = 47,710.02 × 19,338.68
  4. Step 4: Simplify right side
    31,844.18x = 922,648,809.57
  5. Step 5: Solve for x
    x = 922,648,809.57/31,844.18
  6. Step 6: Final answer
    x = 28,973.86

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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.