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Finding the Fourth Proportional to 57,774.99, 86,662.25 and 18,335.18

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Solution

The fourth proportional to 57,774.99, 86,662.25 and 18,335.18 is: 27,502.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,774.99 : 86,662.25 = 18,335.18 : x
  2. Step 2: Convert to fraction form
    57,774.99/86,662.25 = 18,335.18/x
  3. Step 3: Cross multiply
    57,774.99x = 86,662.25 × 18,335.18
  4. Step 4: Simplify right side
    57,774.99x = 1,588,967,762.35
  5. Step 5: Solve for x
    x = 1,588,967,762.35/57,774.99
  6. Step 6: Final answer
    x = 27,502.69

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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.