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Finding the Fourth Proportional to 15,491.60, 23,239.64 and 6,726.48

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Solution

The fourth proportional to 15,491.60, 23,239.64 and 6,726.48 is: 10,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491.60 : 23,239.64 = 6,726.48 : x
  2. Step 2: Convert to fraction form
    15,491.60/23,239.64 = 6,726.48/x
  3. Step 3: Cross multiply
    15,491.60x = 23,239.64 × 6,726.48
  4. Step 4: Simplify right side
    15,491.60x = 156,320,973.67
  5. Step 5: Solve for x
    x = 156,320,973.67/15,491.60
  6. Step 6: Final answer
    x = 10,090.69

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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.