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Finding the Fourth Proportional to 18,746.92, 28,106.48 and 11,349.63

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Solution

The fourth proportional to 18,746.92, 28,106.48 and 11,349.63 is: 17,016.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.92 : 28,106.48 = 11,349.63 : x
  2. Step 2: Convert to fraction form
    18,746.92/28,106.48 = 11,349.63/x
  3. Step 3: Cross multiply
    18,746.92x = 28,106.48 × 11,349.63
  4. Step 4: Simplify right side
    18,746.92x = 318,998,148.60
  5. Step 5: Solve for x
    x = 318,998,148.60/18,746.92
  6. Step 6: Final answer
    x = 17,016.03

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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.