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Finding the Fourth Proportional to 12,447.01, 18,670.47 and 5,869.63

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Solution

The fourth proportional to 12,447.01, 18,670.47 and 5,869.63 is: 8,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.01 : 18,670.47 = 5,869.63 : x
  2. Step 2: Convert to fraction form
    12,447.01/18,670.47 = 5,869.63/x
  3. Step 3: Cross multiply
    12,447.01x = 18,670.47 × 5,869.63
  4. Step 4: Simplify right side
    12,447.01x = 109,588,750.83
  5. Step 5: Solve for x
    x = 109,588,750.83/12,447.01
  6. Step 6: Final answer
    x = 8,804.42

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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.