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Finding the Fourth Proportional to 13,598.74, 18,766.44 and 7,630.06

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Solution

The fourth proportional to 13,598.74, 18,766.44 and 7,630.06 is: 10,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.74 : 18,766.44 = 7,630.06 : x
  2. Step 2: Convert to fraction form
    13,598.74/18,766.44 = 7,630.06/x
  3. Step 3: Cross multiply
    13,598.74x = 18,766.44 × 7,630.06
  4. Step 4: Simplify right side
    13,598.74x = 143,189,063.19
  5. Step 5: Solve for x
    x = 143,189,063.19/13,598.74
  6. Step 6: Final answer
    x = 10,529.58

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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.