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Finding the Fourth Proportional to 6,307.75, 8,705.43 and 3,655.24

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Solution

The fourth proportional to 6,307.75, 8,705.43 and 3,655.24 is: 5,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.75 : 8,705.43 = 3,655.24 : x
  2. Step 2: Convert to fraction form
    6,307.75/8,705.43 = 3,655.24/x
  3. Step 3: Cross multiply
    6,307.75x = 8,705.43 × 3,655.24
  4. Step 4: Simplify right side
    6,307.75x = 31,820,435.95
  5. Step 5: Solve for x
    x = 31,820,435.95/6,307.75
  6. Step 6: Final answer
    x = 5,044.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.