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Finding the Fourth Proportional to 7,153.58, 9,872.19 and 4,168.93

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Solution

The fourth proportional to 7,153.58, 9,872.19 and 4,168.93 is: 5,753.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.58 : 9,872.19 = 4,168.93 : x
  2. Step 2: Convert to fraction form
    7,153.58/9,872.19 = 4,168.93/x
  3. Step 3: Cross multiply
    7,153.58x = 9,872.19 × 4,168.93
  4. Step 4: Simplify right side
    7,153.58x = 41,156,444.38
  5. Step 5: Solve for x
    x = 41,156,444.38/7,153.58
  6. Step 6: Final answer
    x = 5,753.27

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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.