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Finding the Fourth Proportional to 12,670.63, 19,009.25 and 4,773.23

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Solution

The fourth proportional to 12,670.63, 19,009.25 and 4,773.23 is: 7,161.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.63 : 19,009.25 = 4,773.23 : x
  2. Step 2: Convert to fraction form
    12,670.63/19,009.25 = 4,773.23/x
  3. Step 3: Cross multiply
    12,670.63x = 19,009.25 × 4,773.23
  4. Step 4: Simplify right side
    12,670.63x = 90,735,492.65
  5. Step 5: Solve for x
    x = 90,735,492.65/12,670.63
  6. Step 6: Final answer
    x = 7,161.09

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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.