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Finding the Fourth Proportional to 14,992.83, 20,703.42 and 9,337.28

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Solution

The fourth proportional to 14,992.83, 20,703.42 and 9,337.28 is: 12,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.83 : 20,703.42 = 9,337.28 : x
  2. Step 2: Convert to fraction form
    14,992.83/20,703.42 = 9,337.28/x
  3. Step 3: Cross multiply
    14,992.83x = 20,703.42 × 9,337.28
  4. Step 4: Simplify right side
    14,992.83x = 193,313,629.50
  5. Step 5: Solve for x
    x = 193,313,629.50/14,992.83
  6. Step 6: Final answer
    x = 12,893.74

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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.