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Finding the Fourth Proportional to 9,771.15, 14,585.94 and 8,588.79

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Solution

The fourth proportional to 9,771.15, 14,585.94 and 8,588.79 is: 12,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771.15 : 14,585.94 = 8,588.79 : x
  2. Step 2: Convert to fraction form
    9,771.15/14,585.94 = 8,588.79/x
  3. Step 3: Cross multiply
    9,771.15x = 14,585.94 × 8,588.79
  4. Step 4: Simplify right side
    9,771.15x = 125,275,575.61
  5. Step 5: Solve for x
    x = 125,275,575.61/9,771.15
  6. Step 6: Final answer
    x = 12,820.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.