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Finding the Fourth Proportional to 32,668.40, 45,085.74 and 19,243.88

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Solution

The fourth proportional to 32,668.40, 45,085.74 and 19,243.88 is: 26,558.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,668.40 : 45,085.74 = 19,243.88 : x
  2. Step 2: Convert to fraction form
    32,668.40/45,085.74 = 19,243.88/x
  3. Step 3: Cross multiply
    32,668.40x = 45,085.74 × 19,243.88
  4. Step 4: Simplify right side
    32,668.40x = 867,624,570.27
  5. Step 5: Solve for x
    x = 867,624,570.27/32,668.40
  6. Step 6: Final answer
    x = 26,558.53

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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.