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Finding the Fourth Proportional to 5,703.10, 8,536.20 and 4,915.78

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Solution

The fourth proportional to 5,703.10, 8,536.20 and 4,915.78 is: 7,357.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,703.10 : 8,536.20 = 4,915.78 : x
  2. Step 2: Convert to fraction form
    5,703.10/8,536.20 = 4,915.78/x
  3. Step 3: Cross multiply
    5,703.10x = 8,536.20 × 4,915.78
  4. Step 4: Simplify right side
    5,703.10x = 41,962,081.24
  5. Step 5: Solve for x
    x = 41,962,081.24/5,703.10
  6. Step 6: Final answer
    x = 7,357.77

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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.