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Finding the Fourth Proportional to 8,715.71, 12,027.75 and 4,736.82

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Solution

The fourth proportional to 8,715.71, 12,027.75 and 4,736.82 is: 6,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.71 : 12,027.75 = 4,736.82 : x
  2. Step 2: Convert to fraction form
    8,715.71/12,027.75 = 4,736.82/x
  3. Step 3: Cross multiply
    8,715.71x = 12,027.75 × 4,736.82
  4. Step 4: Simplify right side
    8,715.71x = 56,973,263.07
  5. Step 5: Solve for x
    x = 56,973,263.07/8,715.71
  6. Step 6: Final answer
    x = 6,536.85

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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.