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Finding the Fourth Proportional to 60,418.53, 83,400.81 and 40,268.06

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Solution

The fourth proportional to 60,418.53, 83,400.81 and 40,268.06 is: 55,585.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,418.53 : 83,400.81 = 40,268.06 : x
  2. Step 2: Convert to fraction form
    60,418.53/83,400.81 = 40,268.06/x
  3. Step 3: Cross multiply
    60,418.53x = 83,400.81 × 40,268.06
  4. Step 4: Simplify right side
    60,418.53x = 3,358,388,821.13
  5. Step 5: Solve for x
    x = 3,358,388,821.13/60,418.53
  6. Step 6: Final answer
    x = 55,585.41

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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.