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Finding the Fourth Proportional to 56,151.77, 77,419.41 and 35,975.48

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Solution

The fourth proportional to 56,151.77, 77,419.41 and 35,975.48 is: 49,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,151.77 : 77,419.41 = 35,975.48 : x
  2. Step 2: Convert to fraction form
    56,151.77/77,419.41 = 35,975.48/x
  3. Step 3: Cross multiply
    56,151.77x = 77,419.41 × 35,975.48
  4. Step 4: Simplify right side
    56,151.77x = 2,785,200,436.07
  5. Step 5: Solve for x
    x = 2,785,200,436.07/56,151.77
  6. Step 6: Final answer
    x = 49,601.29

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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.