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Finding the Fourth Proportional to 15,308.64, 22,961.32 and 7,493.76

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Solution

The fourth proportional to 15,308.64, 22,961.32 and 7,493.76 is: 11,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.64 : 22,961.32 = 7,493.76 : x
  2. Step 2: Convert to fraction form
    15,308.64/22,961.32 = 7,493.76/x
  3. Step 3: Cross multiply
    15,308.64x = 22,961.32 × 7,493.76
  4. Step 4: Simplify right side
    15,308.64x = 172,066,621.36
  5. Step 5: Solve for x
    x = 172,066,621.36/15,308.64
  6. Step 6: Final answer
    x = 11,239.84

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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.