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Finding the Fourth Proportional to 17,207.30, 25,798.80 and 7,851.80

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Solution

The fourth proportional to 17,207.30, 25,798.80 and 7,851.80 is: 11,772.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,207.30 : 25,798.80 = 7,851.80 : x
  2. Step 2: Convert to fraction form
    17,207.30/25,798.80 = 7,851.80/x
  3. Step 3: Cross multiply
    17,207.30x = 25,798.80 × 7,851.80
  4. Step 4: Simplify right side
    17,207.30x = 202,567,017.84
  5. Step 5: Solve for x
    x = 202,567,017.84/17,207.30
  6. Step 6: Final answer
    x = 11,772.16

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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.