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Finding the Fourth Proportional to 61,880.76, 85,396.14 and 33,586.92

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Solution

The fourth proportional to 61,880.76, 85,396.14 and 33,586.92 is: 46,350.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,880.76 : 85,396.14 = 33,586.92 : x
  2. Step 2: Convert to fraction form
    61,880.76/85,396.14 = 33,586.92/x
  3. Step 3: Cross multiply
    61,880.76x = 85,396.14 × 33,586.92
  4. Step 4: Simplify right side
    61,880.76x = 2,868,193,322.49
  5. Step 5: Solve for x
    x = 2,868,193,322.49/61,880.76
  6. Step 6: Final answer
    x = 46,350.32

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Double scale
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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.