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Finding the Fourth Proportional to 28,065.32, 42,096.94 and 7,005.32

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Solution

The fourth proportional to 28,065.32, 42,096.94 and 7,005.32 is: 10,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.32 : 42,096.94 = 7,005.32 : x
  2. Step 2: Convert to fraction form
    28,065.32/42,096.94 = 7,005.32/x
  3. Step 3: Cross multiply
    28,065.32x = 42,096.94 × 7,005.32
  4. Step 4: Simplify right side
    28,065.32x = 294,902,535.72
  5. Step 5: Solve for x
    x = 294,902,535.72/28,065.32
  6. Step 6: Final answer
    x = 10,507.72

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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.