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Finding the Fourth Proportional to 18,622.32, 27,893.34 and 8,746.80

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Solution

The fourth proportional to 18,622.32, 27,893.34 and 8,746.80 is: 13,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.32 : 27,893.34 = 8,746.80 : x
  2. Step 2: Convert to fraction form
    18,622.32/27,893.34 = 8,746.80/x
  3. Step 3: Cross multiply
    18,622.32x = 27,893.34 × 8,746.80
  4. Step 4: Simplify right side
    18,622.32x = 243,977,466.31
  5. Step 5: Solve for x
    x = 243,977,466.31/18,622.32
  6. Step 6: Final answer
    x = 13,101.35

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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.