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Finding the Fourth Proportional to 15,061.94, 20,785.48 and 8,348.58

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Solution

The fourth proportional to 15,061.94, 20,785.48 and 8,348.58 is: 11,521.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,061.94 : 20,785.48 = 8,348.58 : x
  2. Step 2: Convert to fraction form
    15,061.94/20,785.48 = 8,348.58/x
  3. Step 3: Cross multiply
    15,061.94x = 20,785.48 × 8,348.58
  4. Step 4: Simplify right side
    15,061.94x = 173,529,242.62
  5. Step 5: Solve for x
    x = 173,529,242.62/15,061.94
  6. Step 6: Final answer
    x = 11,521.04

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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.