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Finding the Fourth Proportional to 28,192.50, 38,905.66 and 17,014.50

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Solution

The fourth proportional to 28,192.50, 38,905.66 and 17,014.50 is: 23,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.50 : 38,905.66 = 17,014.50 : x
  2. Step 2: Convert to fraction form
    28,192.50/38,905.66 = 17,014.50/x
  3. Step 3: Cross multiply
    28,192.50x = 38,905.66 × 17,014.50
  4. Step 4: Simplify right side
    28,192.50x = 661,960,352.07
  5. Step 5: Solve for x
    x = 661,960,352.07/28,192.50
  6. Step 6: Final answer
    x = 23,480.02

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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.