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Finding the Fourth Proportional to 15,317.61, 22,981.02 and 5,455.60

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Solution

The fourth proportional to 15,317.61, 22,981.02 and 5,455.60 is: 8,185.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.61 : 22,981.02 = 5,455.60 : x
  2. Step 2: Convert to fraction form
    15,317.61/22,981.02 = 5,455.60/x
  3. Step 3: Cross multiply
    15,317.61x = 22,981.02 × 5,455.60
  4. Step 4: Simplify right side
    15,317.61x = 125,375,266.35
  5. Step 5: Solve for x
    x = 125,375,266.35/15,317.61
  6. Step 6: Final answer
    x = 8,185.04

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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.