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Finding the Fourth Proportional to 18,697.44, 25,830.72 and 13,973.52

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Solution

The fourth proportional to 18,697.44, 25,830.72 and 13,973.52 is: 19,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.44 : 25,830.72 = 13,973.52 : x
  2. Step 2: Convert to fraction form
    18,697.44/25,830.72 = 13,973.52/x
  3. Step 3: Cross multiply
    18,697.44x = 25,830.72 × 13,973.52
  4. Step 4: Simplify right side
    18,697.44x = 360,946,082.53
  5. Step 5: Solve for x
    x = 360,946,082.53/18,697.44
  6. Step 6: Final answer
    x = 19,304.57

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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.