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Finding the Fourth Proportional to 55,316.80, 83,274.16 and 50,417.92

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Solution

The fourth proportional to 55,316.80, 83,274.16 and 50,417.92 is: 75,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,316.80 : 83,274.16 = 50,417.92 : x
  2. Step 2: Convert to fraction form
    55,316.80/83,274.16 = 50,417.92/x
  3. Step 3: Cross multiply
    55,316.80x = 83,274.16 × 50,417.92
  4. Step 4: Simplify right side
    55,316.80x = 4,198,509,936.95
  5. Step 5: Solve for x
    x = 4,198,509,936.95/55,316.80
  6. Step 6: Final answer
    x = 75,899.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.