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Finding the Fourth Proportional to 28,065.44, 42,096.93 and 7,005.57

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Solution

The fourth proportional to 28,065.44, 42,096.93 and 7,005.57 is: 10,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.44 : 42,096.93 = 7,005.57 : x
  2. Step 2: Convert to fraction form
    28,065.44/42,096.93 = 7,005.57/x
  3. Step 3: Cross multiply
    28,065.44x = 42,096.93 × 7,005.57
  4. Step 4: Simplify right side
    28,065.44x = 294,912,989.90
  5. Step 5: Solve for x
    x = 294,912,989.90/28,065.44
  6. Step 6: Final answer
    x = 10,508.05

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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.