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Finding the Fourth Proportional to 9,169.28, 12,653.52 and 4,977.52

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Solution

The fourth proportional to 9,169.28, 12,653.52 and 4,977.52 is: 6,868.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.28 : 12,653.52 = 4,977.52 : x
  2. Step 2: Convert to fraction form
    9,169.28/12,653.52 = 4,977.52/x
  3. Step 3: Cross multiply
    9,169.28x = 12,653.52 × 4,977.52
  4. Step 4: Simplify right side
    9,169.28x = 62,983,148.87
  5. Step 5: Solve for x
    x = 62,983,148.87/9,169.28
  6. Step 6: Final answer
    x = 6,868.93

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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.