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Finding the Fourth Proportional to 19,303.68, 28,955.22 and 6,155.97

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Solution

The fourth proportional to 19,303.68, 28,955.22 and 6,155.97 is: 9,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.68 : 28,955.22 = 6,155.97 : x
  2. Step 2: Convert to fraction form
    19,303.68/28,955.22 = 6,155.97/x
  3. Step 3: Cross multiply
    19,303.68x = 28,955.22 × 6,155.97
  4. Step 4: Simplify right side
    19,303.68x = 178,247,368.62
  5. Step 5: Solve for x
    x = 178,247,368.62/19,303.68
  6. Step 6: Final answer
    x = 9,233.85

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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.