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Finding the Fourth Proportional to 60,765.21, 83,860.14 and 33,912.90

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Solution

The fourth proportional to 60,765.21, 83,860.14 and 33,912.90 is: 46,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,765.21 : 83,860.14 = 33,912.90 : x
  2. Step 2: Convert to fraction form
    60,765.21/83,860.14 = 33,912.90/x
  3. Step 3: Cross multiply
    60,765.21x = 83,860.14 × 33,912.90
  4. Step 4: Simplify right side
    60,765.21x = 2,843,940,541.81
  5. Step 5: Solve for x
    x = 2,843,940,541.81/60,765.21
  6. Step 6: Final answer
    x = 46,802.12

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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.