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Finding the Fourth Proportional to 7,682.12, 10,602.11 and 4,699.94

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Solution

The fourth proportional to 7,682.12, 10,602.11 and 4,699.94 is: 6,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,682.12 : 10,602.11 = 4,699.94 : x
  2. Step 2: Convert to fraction form
    7,682.12/10,602.11 = 4,699.94/x
  3. Step 3: Cross multiply
    7,682.12x = 10,602.11 × 4,699.94
  4. Step 4: Simplify right side
    7,682.12x = 49,829,239.61
  5. Step 5: Solve for x
    x = 49,829,239.61/7,682.12
  6. Step 6: Final answer
    x = 6,486.40

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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.