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Finding the Fourth Proportional to 18,893.53, 28,328.14 and 9,032.59

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Solution

The fourth proportional to 18,893.53, 28,328.14 and 9,032.59 is: 13,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893.53 : 28,328.14 = 9,032.59 : x
  2. Step 2: Convert to fraction form
    18,893.53/28,328.14 = 9,032.59/x
  3. Step 3: Cross multiply
    18,893.53x = 28,328.14 × 9,032.59
  4. Step 4: Simplify right side
    18,893.53x = 255,876,474.08
  5. Step 5: Solve for x
    x = 255,876,474.08/18,893.53
  6. Step 6: Final answer
    x = 13,543.07

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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.