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Finding the Fourth Proportional to 8,783.72, 13,154.24 and 4,828.94

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Solution

The fourth proportional to 8,783.72, 13,154.24 and 4,828.94 is: 7,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.72 : 13,154.24 = 4,828.94 : x
  2. Step 2: Convert to fraction form
    8,783.72/13,154.24 = 4,828.94/x
  3. Step 3: Cross multiply
    8,783.72x = 13,154.24 × 4,828.94
  4. Step 4: Simplify right side
    8,783.72x = 63,520,982.01
  5. Step 5: Solve for x
    x = 63,520,982.01/8,783.72
  6. Step 6: Final answer
    x = 7,231.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.