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Finding the Fourth Proportional to 34,752.88, 47,958.80 and 18,837.20

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Solution

The fourth proportional to 34,752.88, 47,958.80 and 18,837.20 is: 25,995.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,752.88 : 47,958.80 = 18,837.20 : x
  2. Step 2: Convert to fraction form
    34,752.88/47,958.80 = 18,837.20/x
  3. Step 3: Cross multiply
    34,752.88x = 47,958.80 × 18,837.20
  4. Step 4: Simplify right side
    34,752.88x = 903,409,507.36
  5. Step 5: Solve for x
    x = 903,409,507.36/34,752.88
  6. Step 6: Final answer
    x = 25,995.24

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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.