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Finding the Fourth Proportional to 28,041.27, 42,040.98 and 16,945.44

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Solution

The fourth proportional to 28,041.27, 42,040.98 and 16,945.44 is: 25,405.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.27 : 42,040.98 = 16,945.44 : x
  2. Step 2: Convert to fraction form
    28,041.27/42,040.98 = 16,945.44/x
  3. Step 3: Cross multiply
    28,041.27x = 42,040.98 × 16,945.44
  4. Step 4: Simplify right side
    28,041.27x = 712,402,904.13
  5. Step 5: Solve for x
    x = 712,402,904.13/28,041.27
  6. Step 6: Final answer
    x = 25,405.51

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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.