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Finding the Fourth Proportional to 9,759.88, 14,639.79 and 7,541.94

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Solution

The fourth proportional to 9,759.88, 14,639.79 and 7,541.94 is: 11,312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,759.88 : 14,639.79 = 7,541.94 : x
  2. Step 2: Convert to fraction form
    9,759.88/14,639.79 = 7,541.94/x
  3. Step 3: Cross multiply
    9,759.88x = 14,639.79 × 7,541.94
  4. Step 4: Simplify right side
    9,759.88x = 110,412,306.88
  5. Step 5: Solve for x
    x = 110,412,306.88/9,759.88
  6. Step 6: Final answer
    x = 11,312.88

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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.