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Finding the Fourth Proportional to 7,049.68, 9,715.16 and 5,056.79

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Solution

The fourth proportional to 7,049.68, 9,715.16 and 5,056.79 is: 6,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.68 : 9,715.16 = 5,056.79 : x
  2. Step 2: Convert to fraction form
    7,049.68/9,715.16 = 5,056.79/x
  3. Step 3: Cross multiply
    7,049.68x = 9,715.16 × 5,056.79
  4. Step 4: Simplify right side
    7,049.68x = 49,127,488.00
  5. Step 5: Solve for x
    x = 49,127,488.00/7,049.68
  6. Step 6: Final answer
    x = 6,968.76

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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.