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Finding the Fourth Proportional to 7,157.61, 9,877.61 and 4,324.97

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Solution

The fourth proportional to 7,157.61, 9,877.61 and 4,324.97 is: 5,968.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.61 : 9,877.61 = 4,324.97 : x
  2. Step 2: Convert to fraction form
    7,157.61/9,877.61 = 4,324.97/x
  3. Step 3: Cross multiply
    7,157.61x = 9,877.61 × 4,324.97
  4. Step 4: Simplify right side
    7,157.61x = 42,720,402.43
  5. Step 5: Solve for x
    x = 42,720,402.43/7,157.61
  6. Step 6: Final answer
    x = 5,968.53

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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.