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Finding the Fourth Proportional to 18,894.33, 28,308.42 and 11,483.10

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Solution

The fourth proportional to 18,894.33, 28,308.42 and 11,483.10 is: 17,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894.33 : 28,308.42 = 11,483.10 : x
  2. Step 2: Convert to fraction form
    18,894.33/28,308.42 = 11,483.10/x
  3. Step 3: Cross multiply
    18,894.33x = 28,308.42 × 11,483.10
  4. Step 4: Simplify right side
    18,894.33x = 325,068,417.70
  5. Step 5: Solve for x
    x = 325,068,417.70/18,894.33
  6. Step 6: Final answer
    x = 17,204.55

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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.