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Finding the Fourth Proportional to 9,367.79, 12,927.53 and 5,118.87

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Solution

The fourth proportional to 9,367.79, 12,927.53 and 5,118.87 is: 7,064.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,367.79 : 12,927.53 = 5,118.87 : x
  2. Step 2: Convert to fraction form
    9,367.79/12,927.53 = 5,118.87/x
  3. Step 3: Cross multiply
    9,367.79x = 12,927.53 × 5,118.87
  4. Step 4: Simplify right side
    9,367.79x = 66,174,406.77
  5. Step 5: Solve for x
    x = 66,174,406.77/9,367.79
  6. Step 6: Final answer
    x = 7,064.04

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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.