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Finding the Fourth Proportional to 28,888.56, 43,343.28 and 11,348.64

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Solution

The fourth proportional to 28,888.56, 43,343.28 and 11,348.64 is: 17,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.56 : 43,343.28 = 11,348.64 : x
  2. Step 2: Convert to fraction form
    28,888.56/43,343.28 = 11,348.64/x
  3. Step 3: Cross multiply
    28,888.56x = 43,343.28 × 11,348.64
  4. Step 4: Simplify right side
    28,888.56x = 491,887,281.14
  5. Step 5: Solve for x
    x = 491,887,281.14/28,888.56
  6. Step 6: Final answer
    x = 17,027.06

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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.