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Finding the Fourth Proportional to 9,289.84, 12,814.68 and 5,750.68

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Solution

The fourth proportional to 9,289.84, 12,814.68 and 5,750.68 is: 7,932.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.84 : 12,814.68 = 5,750.68 : x
  2. Step 2: Convert to fraction form
    9,289.84/12,814.68 = 5,750.68/x
  3. Step 3: Cross multiply
    9,289.84x = 12,814.68 × 5,750.68
  4. Step 4: Simplify right side
    9,289.84x = 73,693,123.98
  5. Step 5: Solve for x
    x = 73,693,123.98/9,289.84
  6. Step 6: Final answer
    x = 7,932.66

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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.