Home / 66,200.32-99,300.46-19,453.20

Finding the Fourth Proportional to 66,200.32, 99,300.46 and 19,453.20

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Solution

The fourth proportional to 66,200.32, 99,300.46 and 19,453.20 is: 29,179.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.32 : 99,300.46 = 19,453.20 : x
  2. Step 2: Convert to fraction form
    66,200.32/99,300.46 = 19,453.20/x
  3. Step 3: Cross multiply
    66,200.32x = 99,300.46 × 19,453.20
  4. Step 4: Simplify right side
    66,200.32x = 1,931,711,708.47
  5. Step 5: Solve for x
    x = 1,931,711,708.47/66,200.32
  6. Step 6: Final answer
    x = 29,179.79

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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.