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Finding the Fourth Proportional to 21,636.24, 32,458.36 and 6,848.88

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Solution

The fourth proportional to 21,636.24, 32,458.36 and 6,848.88 is: 10,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636.24 : 32,458.36 = 6,848.88 : x
  2. Step 2: Convert to fraction form
    21,636.24/32,458.36 = 6,848.88/x
  3. Step 3: Cross multiply
    21,636.24x = 32,458.36 × 6,848.88
  4. Step 4: Simplify right side
    21,636.24x = 222,303,412.64
  5. Step 5: Solve for x
    x = 222,303,412.64/21,636.24
  6. Step 6: Final answer
    x = 10,274.59

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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.