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Finding the Fourth Proportional to 15,373.86, 21,201.90 and 10,066.74

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Solution

The fourth proportional to 15,373.86, 21,201.90 and 10,066.74 is: 13,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.86 : 21,201.90 = 10,066.74 : x
  2. Step 2: Convert to fraction form
    15,373.86/21,201.90 = 10,066.74/x
  3. Step 3: Cross multiply
    15,373.86x = 21,201.90 × 10,066.74
  4. Step 4: Simplify right side
    15,373.86x = 213,434,014.81
  5. Step 5: Solve for x
    x = 213,434,014.81/15,373.86
  6. Step 6: Final answer
    x = 13,882.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.