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Finding the Fourth Proportional to 19,015.52, 28,499.52 and 9,152.16

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Solution

The fourth proportional to 19,015.52, 28,499.52 and 9,152.16 is: 13,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.52 : 28,499.52 = 9,152.16 : x
  2. Step 2: Convert to fraction form
    19,015.52/28,499.52 = 9,152.16/x
  3. Step 3: Cross multiply
    19,015.52x = 28,499.52 × 9,152.16
  4. Step 4: Simplify right side
    19,015.52x = 260,832,166.96
  5. Step 5: Solve for x
    x = 260,832,166.96/19,015.52
  6. Step 6: Final answer
    x = 13,716.80

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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.