Home / 30,650.70-42,325.64-19,340.27

Finding the Fourth Proportional to 30,650.70, 42,325.64 and 19,340.27

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Solution

The fourth proportional to 30,650.70, 42,325.64 and 19,340.27 is: 26,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,650.70 : 42,325.64 = 19,340.27 : x
  2. Step 2: Convert to fraction form
    30,650.70/42,325.64 = 19,340.27/x
  3. Step 3: Cross multiply
    30,650.70x = 42,325.64 × 19,340.27
  4. Step 4: Simplify right side
    30,650.70x = 818,589,305.52
  5. Step 5: Solve for x
    x = 818,589,305.52/30,650.70
  6. Step 6: Final answer
    x = 26,707.03

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Half scale
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Double scale
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Similar ratio
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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.