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Finding the Fourth Proportional to 17,252.80, 25,840.32 and 10,312.80

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Solution

The fourth proportional to 17,252.80, 25,840.32 and 10,312.80 is: 15,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,252.80 : 25,840.32 = 10,312.80 : x
  2. Step 2: Convert to fraction form
    17,252.80/25,840.32 = 10,312.80/x
  3. Step 3: Cross multiply
    17,252.80x = 25,840.32 × 10,312.80
  4. Step 4: Simplify right side
    17,252.80x = 266,486,052.10
  5. Step 5: Solve for x
    x = 266,486,052.10/17,252.80
  6. Step 6: Final answer
    x = 15,445.96

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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.