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Finding the Fourth Proportional to 15,657.21, 23,493.54 and 7,335.79

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Solution

The fourth proportional to 15,657.21, 23,493.54 and 7,335.79 is: 11,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.21 : 23,493.54 = 7,335.79 : x
  2. Step 2: Convert to fraction form
    15,657.21/23,493.54 = 7,335.79/x
  3. Step 3: Cross multiply
    15,657.21x = 23,493.54 × 7,335.79
  4. Step 4: Simplify right side
    15,657.21x = 172,343,675.80
  5. Step 5: Solve for x
    x = 172,343,675.80/15,657.21
  6. Step 6: Final answer
    x = 11,007.30

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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.