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Finding the Fourth Proportional to 7,988.79, 11,024.10 and 4,403.64

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Solution

The fourth proportional to 7,988.79, 11,024.10 and 4,403.64 is: 6,076.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.79 : 11,024.10 = 4,403.64 : x
  2. Step 2: Convert to fraction form
    7,988.79/11,024.10 = 4,403.64/x
  3. Step 3: Cross multiply
    7,988.79x = 11,024.10 × 4,403.64
  4. Step 4: Simplify right side
    7,988.79x = 48,546,167.72
  5. Step 5: Solve for x
    x = 48,546,167.72/7,988.79
  6. Step 6: Final answer
    x = 6,076.79

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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.