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Finding the Fourth Proportional to 9,953.36, 13,734.80 and 5,761.88

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Solution

The fourth proportional to 9,953.36, 13,734.80 and 5,761.88 is: 7,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,953.36 : 13,734.80 = 5,761.88 : x
  2. Step 2: Convert to fraction form
    9,953.36/13,734.80 = 5,761.88/x
  3. Step 3: Cross multiply
    9,953.36x = 13,734.80 × 5,761.88
  4. Step 4: Simplify right side
    9,953.36x = 79,138,269.42
  5. Step 5: Solve for x
    x = 79,138,269.42/9,953.36
  6. Step 6: Final answer
    x = 7,950.91

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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.