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Finding the Fourth Proportional to 30,959.00, 42,723.02 and 17,530.22

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Solution

The fourth proportional to 30,959.00, 42,723.02 and 17,530.22 is: 24,191.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,959.00 : 42,723.02 = 17,530.22 : x
  2. Step 2: Convert to fraction form
    30,959.00/42,723.02 = 17,530.22/x
  3. Step 3: Cross multiply
    30,959.00x = 42,723.02 × 17,530.22
  4. Step 4: Simplify right side
    30,959.00x = 748,943,769.87
  5. Step 5: Solve for x
    x = 748,943,769.87/30,959.00
  6. Step 6: Final answer
    x = 24,191.47

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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.