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Finding the Fourth Proportional to 17,411.70, 26,117.55 and 15,516.30

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Solution

The fourth proportional to 17,411.70, 26,117.55 and 15,516.30 is: 23,274.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,411.70 : 26,117.55 = 15,516.30 : x
  2. Step 2: Convert to fraction form
    17,411.70/26,117.55 = 15,516.30/x
  3. Step 3: Cross multiply
    17,411.70x = 26,117.55 × 15,516.30
  4. Step 4: Simplify right side
    17,411.70x = 405,247,741.07
  5. Step 5: Solve for x
    x = 405,247,741.07/17,411.70
  6. Step 6: Final answer
    x = 23,274.45

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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.