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Finding the Fourth Proportional to 17,135.20, 23,646.88 and 9,683.20

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Solution

The fourth proportional to 17,135.20, 23,646.88 and 9,683.20 is: 13,362.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,135.20 : 23,646.88 = 9,683.20 : x
  2. Step 2: Convert to fraction form
    17,135.20/23,646.88 = 9,683.20/x
  3. Step 3: Cross multiply
    17,135.20x = 23,646.88 × 9,683.20
  4. Step 4: Simplify right side
    17,135.20x = 228,977,468.42
  5. Step 5: Solve for x
    x = 228,977,468.42/17,135.20
  6. Step 6: Final answer
    x = 13,362.99

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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.