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Finding the Fourth Proportional to 17,091.10, 25,636.65 and 7,875.10

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Solution

The fourth proportional to 17,091.10, 25,636.65 and 7,875.10 is: 11,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,091.10 : 25,636.65 = 7,875.10 : x
  2. Step 2: Convert to fraction form
    17,091.10/25,636.65 = 7,875.10/x
  3. Step 3: Cross multiply
    17,091.10x = 25,636.65 × 7,875.10
  4. Step 4: Simplify right side
    17,091.10x = 201,891,182.42
  5. Step 5: Solve for x
    x = 201,891,182.42/17,091.10
  6. Step 6: Final answer
    x = 11,812.65

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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.