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Finding the Fourth Proportional to 57,653.70, 86,475.95 and 25,642.70

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Solution

The fourth proportional to 57,653.70, 86,475.95 and 25,642.70 is: 38,461.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,653.70 : 86,475.95 = 25,642.70 : x
  2. Step 2: Convert to fraction form
    57,653.70/86,475.95 = 25,642.70/x
  3. Step 3: Cross multiply
    57,653.70x = 86,475.95 × 25,642.70
  4. Step 4: Simplify right side
    57,653.70x = 2,217,476,282.47
  5. Step 5: Solve for x
    x = 2,217,476,282.47/57,653.70
  6. Step 6: Final answer
    x = 38,461.99

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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.