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Finding the Fourth Proportional to 12,551.70, 17,320.59 and 6,962.70

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Solution

The fourth proportional to 12,551.70, 17,320.59 and 6,962.70 is: 9,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.70 : 17,320.59 = 6,962.70 : x
  2. Step 2: Convert to fraction form
    12,551.70/17,320.59 = 6,962.70/x
  3. Step 3: Cross multiply
    12,551.70x = 17,320.59 × 6,962.70
  4. Step 4: Simplify right side
    12,551.70x = 120,598,071.99
  5. Step 5: Solve for x
    x = 120,598,071.99/12,551.70
  6. Step 6: Final answer
    x = 9,608.11

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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.