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Finding the Fourth Proportional to 9,153.77, 13,697.85 and 7,925.42

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Solution

The fourth proportional to 9,153.77, 13,697.85 and 7,925.42 is: 11,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.77 : 13,697.85 = 7,925.42 : x
  2. Step 2: Convert to fraction form
    9,153.77/13,697.85 = 7,925.42/x
  3. Step 3: Cross multiply
    9,153.77x = 13,697.85 × 7,925.42
  4. Step 4: Simplify right side
    9,153.77x = 108,561,214.35
  5. Step 5: Solve for x
    x = 108,561,214.35/9,153.77
  6. Step 6: Final answer
    x = 11,859.73

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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.