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Finding the Fourth Proportional to 8,763.90, 12,094.22 and 4,785.11

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Solution

The fourth proportional to 8,763.90, 12,094.22 and 4,785.11 is: 6,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.90 : 12,094.22 = 4,785.11 : x
  2. Step 2: Convert to fraction form
    8,763.90/12,094.22 = 4,785.11/x
  3. Step 3: Cross multiply
    8,763.90x = 12,094.22 × 4,785.11
  4. Step 4: Simplify right side
    8,763.90x = 57,872,169.91
  5. Step 5: Solve for x
    x = 57,872,169.91/8,763.90
  6. Step 6: Final answer
    x = 6,603.47

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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.