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Finding the Fourth Proportional to 18,804.48, 28,211.04 and 9,568.32

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Solution

The fourth proportional to 18,804.48, 28,211.04 and 9,568.32 is: 14,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.48 : 28,211.04 = 9,568.32 : x
  2. Step 2: Convert to fraction form
    18,804.48/28,211.04 = 9,568.32/x
  3. Step 3: Cross multiply
    18,804.48x = 28,211.04 × 9,568.32
  4. Step 4: Simplify right side
    18,804.48x = 269,932,258.25
  5. Step 5: Solve for x
    x = 269,932,258.25/18,804.48
  6. Step 6: Final answer
    x = 14,354.68

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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.