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Finding the Fourth Proportional to 17,007.76, 23,482.16 and 15,209.65

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Solution

The fourth proportional to 17,007.76, 23,482.16 and 15,209.65 is: 20,999.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,007.76 : 23,482.16 = 15,209.65 : x
  2. Step 2: Convert to fraction form
    17,007.76/23,482.16 = 15,209.65/x
  3. Step 3: Cross multiply
    17,007.76x = 23,482.16 × 15,209.65
  4. Step 4: Simplify right side
    17,007.76x = 357,155,434.84
  5. Step 5: Solve for x
    x = 357,155,434.84/17,007.76
  6. Step 6: Final answer
    x = 20,999.56

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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.