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Finding the Fourth Proportional to 21,653.78, 32,481.63 and 6,071.06

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Solution

The fourth proportional to 21,653.78, 32,481.63 and 6,071.06 is: 9,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,653.78 : 32,481.63 = 6,071.06 : x
  2. Step 2: Convert to fraction form
    21,653.78/32,481.63 = 6,071.06/x
  3. Step 3: Cross multiply
    21,653.78x = 32,481.63 × 6,071.06
  4. Step 4: Simplify right side
    21,653.78x = 197,197,924.63
  5. Step 5: Solve for x
    x = 197,197,924.63/21,653.78
  6. Step 6: Final answer
    x = 9,106.86

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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.