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Finding the Fourth Proportional to 8,808.53, 12,155.76 and 4,829.71

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Solution

The fourth proportional to 8,808.53, 12,155.76 and 4,829.71 is: 6,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.53 : 12,155.76 = 4,829.71 : x
  2. Step 2: Convert to fraction form
    8,808.53/12,155.76 = 4,829.71/x
  3. Step 3: Cross multiply
    8,808.53x = 12,155.76 × 4,829.71
  4. Step 4: Simplify right side
    8,808.53x = 58,708,777.31
  5. Step 5: Solve for x
    x = 58,708,777.31/8,808.53
  6. Step 6: Final answer
    x = 6,664.99

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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.