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Finding the Fourth Proportional to 9,842.63, 13,588.98 and 6,311.99

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Solution

The fourth proportional to 9,842.63, 13,588.98 and 6,311.99 is: 8,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,842.63 : 13,588.98 = 6,311.99 : x
  2. Step 2: Convert to fraction form
    9,842.63/13,588.98 = 6,311.99/x
  3. Step 3: Cross multiply
    9,842.63x = 13,588.98 × 6,311.99
  4. Step 4: Simplify right side
    9,842.63x = 85,773,516.17
  5. Step 5: Solve for x
    x = 85,773,516.17/9,842.63
  6. Step 6: Final answer
    x = 8,714.50

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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.