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Finding the Fourth Proportional to 51,163.54, 70,602.93 and 28,192.64

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Solution

The fourth proportional to 51,163.54, 70,602.93 and 28,192.64 is: 38,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,163.54 : 70,602.93 = 28,192.64 : x
  2. Step 2: Convert to fraction form
    51,163.54/70,602.93 = 28,192.64/x
  3. Step 3: Cross multiply
    51,163.54x = 70,602.93 × 28,192.64
  4. Step 4: Simplify right side
    51,163.54x = 1,990,482,988.44
  5. Step 5: Solve for x
    x = 1,990,482,988.44/51,163.54
  6. Step 6: Final answer
    x = 38,904.33

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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.