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Finding the Fourth Proportional to 12,748.88, 17,597.18 and 8,506.12

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Solution

The fourth proportional to 12,748.88, 17,597.18 and 8,506.12 is: 11,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.88 : 17,597.18 = 8,506.12 : x
  2. Step 2: Convert to fraction form
    12,748.88/17,597.18 = 8,506.12/x
  3. Step 3: Cross multiply
    12,748.88x = 17,597.18 × 8,506.12
  4. Step 4: Simplify right side
    12,748.88x = 149,683,724.74
  5. Step 5: Solve for x
    x = 149,683,724.74/12,748.88
  6. Step 6: Final answer
    x = 11,740.93

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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.