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Finding the Fourth Proportional to 13,069.68, 18,032.18 and 7,403.52

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Solution

The fourth proportional to 13,069.68, 18,032.18 and 7,403.52 is: 10,214.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.68 : 18,032.18 = 7,403.52 : x
  2. Step 2: Convert to fraction form
    13,069.68/18,032.18 = 7,403.52/x
  3. Step 3: Cross multiply
    13,069.68x = 18,032.18 × 7,403.52
  4. Step 4: Simplify right side
    13,069.68x = 133,501,568.26
  5. Step 5: Solve for x
    x = 133,501,568.26/13,069.68
  6. Step 6: Final answer
    x = 10,214.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.