Home / 57,018.89-85,528.56-19,589.75

Finding the Fourth Proportional to 57,018.89, 85,528.56 and 19,589.75

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Solution

The fourth proportional to 57,018.89, 85,528.56 and 19,589.75 is: 29,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.89 : 85,528.56 = 19,589.75 : x
  2. Step 2: Convert to fraction form
    57,018.89/85,528.56 = 19,589.75/x
  3. Step 3: Cross multiply
    57,018.89x = 85,528.56 × 19,589.75
  4. Step 4: Simplify right side
    57,018.89x = 1,675,482,964.62
  5. Step 5: Solve for x
    x = 1,675,482,964.62/57,018.89
  6. Step 6: Final answer
    x = 29,384.70

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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.