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Finding the Fourth Proportional to 19,953, 27,534.66 and 11,000.34

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Solution

The fourth proportional to 19,953, 27,534.66 and 11,000.34 is: 15,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953 : 27,534.66 = 11,000.34 : x
  2. Step 2: Convert to fraction form
    19,953/27,534.66 = 11,000.34/x
  3. Step 3: Cross multiply
    19,953x = 27,534.66 × 11,000.34
  4. Step 4: Simplify right side
    19,953x = 302,890,621.78
  5. Step 5: Solve for x
    x = 302,890,621.78/19,953
  6. Step 6: Final answer
    x = 15,180.20

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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.