Home / 66,414.40-99,592.26-19,018.74

Finding the Fourth Proportional to 66,414.40, 99,592.26 and 19,018.74

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Solution

The fourth proportional to 66,414.40, 99,592.26 and 19,018.74 is: 28,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414.40 : 99,592.26 = 19,018.74 : x
  2. Step 2: Convert to fraction form
    66,414.40/99,592.26 = 19,018.74/x
  3. Step 3: Cross multiply
    66,414.40x = 99,592.26 × 19,018.74
  4. Step 4: Simplify right side
    66,414.40x = 1,894,119,601.10
  5. Step 5: Solve for x
    x = 1,894,119,601.10/66,414.40
  6. Step 6: Final answer
    x = 28,519.71

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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.