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Finding the Fourth Proportional to 56,611.45, 84,911.71 and 17,168.91

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Solution

The fourth proportional to 56,611.45, 84,911.71 and 17,168.91 is: 25,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,611.45 : 84,911.71 = 17,168.91 : x
  2. Step 2: Convert to fraction form
    56,611.45/84,911.71 = 17,168.91/x
  3. Step 3: Cross multiply
    56,611.45x = 84,911.71 × 17,168.91
  4. Step 4: Simplify right side
    56,611.45x = 1,457,841,082.38
  5. Step 5: Solve for x
    x = 1,457,841,082.38/56,611.45
  6. Step 6: Final answer
    x = 25,751.70

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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.