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Finding the Fourth Proportional to 60,980.28, 84,142.64 and 35,834.64

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Solution

The fourth proportional to 60,980.28, 84,142.64 and 35,834.64 is: 49,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,980.28 : 84,142.64 = 35,834.64 : x
  2. Step 2: Convert to fraction form
    60,980.28/84,142.64 = 35,834.64/x
  3. Step 3: Cross multiply
    60,980.28x = 84,142.64 × 35,834.64
  4. Step 4: Simplify right side
    60,980.28x = 3,015,221,213.05
  5. Step 5: Solve for x
    x = 3,015,221,213.05/60,980.28
  6. Step 6: Final answer
    x = 49,445.84

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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.