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Finding the Fourth Proportional to 28,293.51, 42,440.46 and 8,573.52

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Solution

The fourth proportional to 28,293.51, 42,440.46 and 8,573.52 is: 12,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.51 : 42,440.46 = 8,573.52 : x
  2. Step 2: Convert to fraction form
    28,293.51/42,440.46 = 8,573.52/x
  3. Step 3: Cross multiply
    28,293.51x = 42,440.46 × 8,573.52
  4. Step 4: Simplify right side
    28,293.51x = 363,864,132.62
  5. Step 5: Solve for x
    x = 363,864,132.62/28,293.51
  6. Step 6: Final answer
    x = 12,860.34

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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.