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Finding the Fourth Proportional to 15,279.12, 22,929.24 and 7,483.68

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Solution

The fourth proportional to 15,279.12, 22,929.24 and 7,483.68 is: 11,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279.12 : 22,929.24 = 7,483.68 : x
  2. Step 2: Convert to fraction form
    15,279.12/22,929.24 = 7,483.68/x
  3. Step 3: Cross multiply
    15,279.12x = 22,929.24 × 7,483.68
  4. Step 4: Simplify right side
    15,279.12x = 171,595,094.80
  5. Step 5: Solve for x
    x = 171,595,094.80/15,279.12
  6. Step 6: Final answer
    x = 11,230.69

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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.