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Finding the Fourth Proportional to 11,130.30, 16,695.45 and 4,893.30

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Solution

The fourth proportional to 11,130.30, 16,695.45 and 4,893.30 is: 7,339.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.30 : 16,695.45 = 4,893.30 : x
  2. Step 2: Convert to fraction form
    11,130.30/16,695.45 = 4,893.30/x
  3. Step 3: Cross multiply
    11,130.30x = 16,695.45 × 4,893.30
  4. Step 4: Simplify right side
    11,130.30x = 81,695,845.49
  5. Step 5: Solve for x
    x = 81,695,845.49/11,130.30
  6. Step 6: Final answer
    x = 7,339.95

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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.