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Finding the Fourth Proportional to 14,599.62, 20,147.48 and 7,885.25

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Solution

The fourth proportional to 14,599.62, 20,147.48 and 7,885.25 is: 10,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,599.62 : 20,147.48 = 7,885.25 : x
  2. Step 2: Convert to fraction form
    14,599.62/20,147.48 = 7,885.25/x
  3. Step 3: Cross multiply
    14,599.62x = 20,147.48 × 7,885.25
  4. Step 4: Simplify right side
    14,599.62x = 158,867,776.51
  5. Step 5: Solve for x
    x = 158,867,776.51/14,599.62
  6. Step 6: Final answer
    x = 10,881.64

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1.5x scale

Why These Related Problems?

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