Home / 66,298.60-99,451.17-18,920.67

Finding the Fourth Proportional to 66,298.60, 99,451.17 and 18,920.67

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Solution

The fourth proportional to 66,298.60, 99,451.17 and 18,920.67 is: 28,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.60 : 99,451.17 = 18,920.67 : x
  2. Step 2: Convert to fraction form
    66,298.60/99,451.17 = 18,920.67/x
  3. Step 3: Cross multiply
    66,298.60x = 99,451.17 × 18,920.67
  4. Step 4: Simplify right side
    66,298.60x = 1,881,682,768.68
  5. Step 5: Solve for x
    x = 1,881,682,768.68/66,298.60
  6. Step 6: Final answer
    x = 28,381.94

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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.