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Finding the Fourth Proportional to 9,053.79, 13,578.84 and 2,479.47

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Solution

The fourth proportional to 9,053.79, 13,578.84 and 2,479.47 is: 3,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,053.79 : 13,578.84 = 2,479.47 : x
  2. Step 2: Convert to fraction form
    9,053.79/13,578.84 = 2,479.47/x
  3. Step 3: Cross multiply
    9,053.79x = 13,578.84 × 2,479.47
  4. Step 4: Simplify right side
    9,053.79x = 33,668,326.41
  5. Step 5: Solve for x
    x = 33,668,326.41/9,053.79
  6. Step 6: Final answer
    x = 3,718.70

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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.