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Finding the Fourth Proportional to 8,783.94, 13,173.20 and 4,621.69

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Solution

The fourth proportional to 8,783.94, 13,173.20 and 4,621.69 is: 6,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.94 : 13,173.20 = 4,621.69 : x
  2. Step 2: Convert to fraction form
    8,783.94/13,173.20 = 4,621.69/x
  3. Step 3: Cross multiply
    8,783.94x = 13,173.20 × 4,621.69
  4. Step 4: Simplify right side
    8,783.94x = 60,882,446.71
  5. Step 5: Solve for x
    x = 60,882,446.71/8,783.94
  6. Step 6: Final answer
    x = 6,931.11

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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.