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Finding the Fourth Proportional to 50,728.80, 70,030.14 and 33,761.28

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Solution

The fourth proportional to 50,728.80, 70,030.14 and 33,761.28 is: 46,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,728.80 : 70,030.14 = 33,761.28 : x
  2. Step 2: Convert to fraction form
    50,728.80/70,030.14 = 33,761.28/x
  3. Step 3: Cross multiply
    50,728.80x = 70,030.14 × 33,761.28
  4. Step 4: Simplify right side
    50,728.80x = 2,364,307,164.98
  5. Step 5: Solve for x
    x = 2,364,307,164.98/50,728.80
  6. Step 6: Final answer
    x = 46,606.80

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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.