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Finding the Fourth Proportional to 5,307.67, 7,962.86 and 3,118.24

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Solution

The fourth proportional to 5,307.67, 7,962.86 and 3,118.24 is: 4,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.67 : 7,962.86 = 3,118.24 : x
  2. Step 2: Convert to fraction form
    5,307.67/7,962.86 = 3,118.24/x
  3. Step 3: Cross multiply
    5,307.67x = 7,962.86 × 3,118.24
  4. Step 4: Simplify right side
    5,307.67x = 24,830,108.57
  5. Step 5: Solve for x
    x = 24,830,108.57/5,307.67
  6. Step 6: Final answer
    x = 4,678.16

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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.