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Finding the Fourth Proportional to 7,153.86, 9,872.82 and 4,010.25

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Solution

The fourth proportional to 7,153.86, 9,872.82 and 4,010.25 is: 5,534.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.86 : 9,872.82 = 4,010.25 : x
  2. Step 2: Convert to fraction form
    7,153.86/9,872.82 = 4,010.25/x
  3. Step 3: Cross multiply
    7,153.86x = 9,872.82 × 4,010.25
  4. Step 4: Simplify right side
    7,153.86x = 39,592,476.41
  5. Step 5: Solve for x
    x = 39,592,476.41/7,153.86
  6. Step 6: Final answer
    x = 5,534.42

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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.