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Finding the Fourth Proportional to 15,032.99, 20,742.95 and 9,656.62

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Solution

The fourth proportional to 15,032.99, 20,742.95 and 9,656.62 is: 13,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.99 : 20,742.95 = 9,656.62 : x
  2. Step 2: Convert to fraction form
    15,032.99/20,742.95 = 9,656.62/x
  3. Step 3: Cross multiply
    15,032.99x = 20,742.95 × 9,656.62
  4. Step 4: Simplify right side
    15,032.99x = 200,306,758.11
  5. Step 5: Solve for x
    x = 200,306,758.11/15,032.99
  6. Step 6: Final answer
    x = 13,324.48

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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.