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Finding the Fourth Proportional to 8,763.84, 12,093.98 and 4,785.12

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Solution

The fourth proportional to 8,763.84, 12,093.98 and 4,785.12 is: 6,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.84 : 12,093.98 = 4,785.12 : x
  2. Step 2: Convert to fraction form
    8,763.84/12,093.98 = 4,785.12/x
  3. Step 3: Cross multiply
    8,763.84x = 12,093.98 × 4,785.12
  4. Step 4: Simplify right side
    8,763.84x = 57,871,121.65
  5. Step 5: Solve for x
    x = 57,871,121.65/8,763.84
  6. Step 6: Final answer
    x = 6,603.40

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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.