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Finding the Fourth Proportional to 45,798.28, 68,723.40 and 19,500.28

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Solution

The fourth proportional to 45,798.28, 68,723.40 and 19,500.28 is: 29,261.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,798.28 : 68,723.40 = 19,500.28 : x
  2. Step 2: Convert to fraction form
    45,798.28/68,723.40 = 19,500.28/x
  3. Step 3: Cross multiply
    45,798.28x = 68,723.40 × 19,500.28
  4. Step 4: Simplify right side
    45,798.28x = 1,340,125,542.55
  5. Step 5: Solve for x
    x = 1,340,125,542.55/45,798.28
  6. Step 6: Final answer
    x = 29,261.48

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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.