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Finding the Fourth Proportional to 28,573.76, 42,863.46 and 9,851.34

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Solution

The fourth proportional to 28,573.76, 42,863.46 and 9,851.34 is: 14,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.76 : 42,863.46 = 9,851.34 : x
  2. Step 2: Convert to fraction form
    28,573.76/42,863.46 = 9,851.34/x
  3. Step 3: Cross multiply
    28,573.76x = 42,863.46 × 9,851.34
  4. Step 4: Simplify right side
    28,573.76x = 422,262,394.24
  5. Step 5: Solve for x
    x = 422,262,394.24/28,573.76
  6. Step 6: Final answer
    x = 14,777.98

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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.