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Finding the Fourth Proportional to 16,647.60, 22,955.04 and 11,345.52

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Solution

The fourth proportional to 16,647.60, 22,955.04 and 11,345.52 is: 15,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,647.60 : 22,955.04 = 11,345.52 : x
  2. Step 2: Convert to fraction form
    16,647.60/22,955.04 = 11,345.52/x
  3. Step 3: Cross multiply
    16,647.60x = 22,955.04 × 11,345.52
  4. Step 4: Simplify right side
    16,647.60x = 260,436,865.42
  5. Step 5: Solve for x
    x = 260,436,865.42/16,647.60
  6. Step 6: Final answer
    x = 15,644.11

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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.