Home / 33,211.76-45,829.94-18,678.12

Finding the Fourth Proportional to 33,211.76, 45,829.94 and 18,678.12

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Solution

The fourth proportional to 33,211.76, 45,829.94 and 18,678.12 is: 25,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,211.76 : 45,829.94 = 18,678.12 : x
  2. Step 2: Convert to fraction form
    33,211.76/45,829.94 = 18,678.12/x
  3. Step 3: Cross multiply
    33,211.76x = 45,829.94 × 18,678.12
  4. Step 4: Simplify right side
    33,211.76x = 856,017,025.52
  5. Step 5: Solve for x
    x = 856,017,025.52/33,211.76
  6. Step 6: Final answer
    x = 25,774.52

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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.