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Finding the Fourth Proportional to 61,965.38, 85,492.03 and 36,118.02

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Solution

The fourth proportional to 61,965.38, 85,492.03 and 36,118.02 is: 49,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,965.38 : 85,492.03 = 36,118.02 : x
  2. Step 2: Convert to fraction form
    61,965.38/85,492.03 = 36,118.02/x
  3. Step 3: Cross multiply
    61,965.38x = 85,492.03 × 36,118.02
  4. Step 4: Simplify right side
    61,965.38x = 3,087,802,948.43
  5. Step 5: Solve for x
    x = 3,087,802,948.43/61,965.38
  6. Step 6: Final answer
    x = 49,831.10

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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.