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Finding the Fourth Proportional to 32,670.40, 45,020.64 and 23,212.48

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Solution

The fourth proportional to 32,670.40, 45,020.64 and 23,212.48 is: 31,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,670.40 : 45,020.64 = 23,212.48 : x
  2. Step 2: Convert to fraction form
    32,670.40/45,020.64 = 23,212.48/x
  3. Step 3: Cross multiply
    32,670.40x = 45,020.64 × 23,212.48
  4. Step 4: Simplify right side
    32,670.40x = 1,045,040,705.59
  5. Step 5: Solve for x
    x = 1,045,040,705.59/32,670.40
  6. Step 6: Final answer
    x = 31,987.39

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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.