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Finding the Fourth Proportional to 15,993.84, 23,991.48 and 4,899.72

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Solution

The fourth proportional to 15,993.84, 23,991.48 and 4,899.72 is: 7,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.84 : 23,991.48 = 4,899.72 : x
  2. Step 2: Convert to fraction form
    15,993.84/23,991.48 = 4,899.72/x
  3. Step 3: Cross multiply
    15,993.84x = 23,991.48 × 4,899.72
  4. Step 4: Simplify right side
    15,993.84x = 117,551,534.39
  5. Step 5: Solve for x
    x = 117,551,534.39/15,993.84
  6. Step 6: Final answer
    x = 7,349.80

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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.