Home / 66,378.78-99,568.98-19,632.60

Finding the Fourth Proportional to 66,378.78, 99,568.98 and 19,632.60

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Solution

The fourth proportional to 66,378.78, 99,568.98 and 19,632.60 is: 29,449.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,378.78 : 99,568.98 = 19,632.60 : x
  2. Step 2: Convert to fraction form
    66,378.78/99,568.98 = 19,632.60/x
  3. Step 3: Cross multiply
    66,378.78x = 99,568.98 × 19,632.60
  4. Step 4: Simplify right side
    66,378.78x = 1,954,797,956.75
  5. Step 5: Solve for x
    x = 1,954,797,956.75/66,378.78
  6. Step 6: Final answer
    x = 29,449.14

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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.