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Finding the Fourth Proportional to 39,489.95, 54,496.12 and 22,495.77

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Solution

The fourth proportional to 39,489.95, 54,496.12 and 22,495.77 is: 31,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.95 : 54,496.12 = 22,495.77 : x
  2. Step 2: Convert to fraction form
    39,489.95/54,496.12 = 22,495.77/x
  3. Step 3: Cross multiply
    39,489.95x = 54,496.12 × 22,495.77
  4. Step 4: Simplify right side
    39,489.95x = 1,225,932,181.41
  5. Step 5: Solve for x
    x = 1,225,932,181.41/39,489.95
  6. Step 6: Final answer
    x = 31,044.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.