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Finding the Fourth Proportional to 17,507.80, 26,261.70 and 10,941.40

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Solution

The fourth proportional to 17,507.80, 26,261.70 and 10,941.40 is: 16,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,507.80 : 26,261.70 = 10,941.40 : x
  2. Step 2: Convert to fraction form
    17,507.80/26,261.70 = 10,941.40/x
  3. Step 3: Cross multiply
    17,507.80x = 26,261.70 × 10,941.40
  4. Step 4: Simplify right side
    17,507.80x = 287,339,764.38
  5. Step 5: Solve for x
    x = 287,339,764.38/17,507.80
  6. Step 6: Final answer
    x = 16,412.10

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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.