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Finding the Fourth Proportional to 17,009.10, 25,513.65 and 9,135.90

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Solution

The fourth proportional to 17,009.10, 25,513.65 and 9,135.90 is: 13,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,009.10 : 25,513.65 = 9,135.90 : x
  2. Step 2: Convert to fraction form
    17,009.10/25,513.65 = 9,135.90/x
  3. Step 3: Cross multiply
    17,009.10x = 25,513.65 × 9,135.90
  4. Step 4: Simplify right side
    17,009.10x = 233,090,155.04
  5. Step 5: Solve for x
    x = 233,090,155.04/17,009.10
  6. Step 6: Final answer
    x = 13,703.85

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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.