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Finding the Fourth Proportional to 65,151.21, 89,914.14 and 36,862.32

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Solution

The fourth proportional to 65,151.21, 89,914.14 and 36,862.32 is: 50,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,151.21 : 89,914.14 = 36,862.32 : x
  2. Step 2: Convert to fraction form
    65,151.21/89,914.14 = 36,862.32/x
  3. Step 3: Cross multiply
    65,151.21x = 89,914.14 × 36,862.32
  4. Step 4: Simplify right side
    65,151.21x = 3,314,443,801.20
  5. Step 5: Solve for x
    x = 3,314,443,801.20/65,151.21
  6. Step 6: Final answer
    x = 50,873.10

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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.