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Finding the Fourth Proportional to 57,476.99, 86,215.51 and 15,923.99

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Solution

The fourth proportional to 57,476.99, 86,215.51 and 15,923.99 is: 23,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,476.99 : 86,215.51 = 15,923.99 : x
  2. Step 2: Convert to fraction form
    57,476.99/86,215.51 = 15,923.99/x
  3. Step 3: Cross multiply
    57,476.99x = 86,215.51 × 15,923.99
  4. Step 4: Simplify right side
    57,476.99x = 1,372,894,919.08
  5. Step 5: Solve for x
    x = 1,372,894,919.08/57,476.99
  6. Step 6: Final answer
    x = 23,885.99

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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.