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Finding the Fourth Proportional to 33,798.80, 50,681.28 and 10,422.20

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Solution

The fourth proportional to 33,798.80, 50,681.28 and 10,422.20 is: 15,628.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,798.80 : 50,681.28 = 10,422.20 : x
  2. Step 2: Convert to fraction form
    33,798.80/50,681.28 = 10,422.20/x
  3. Step 3: Cross multiply
    33,798.80x = 50,681.28 × 10,422.20
  4. Step 4: Simplify right side
    33,798.80x = 528,210,436.42
  5. Step 5: Solve for x
    x = 528,210,436.42/33,798.80
  6. Step 6: Final answer
    x = 15,628.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.