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Finding the Fourth Proportional to 20,597.34, 30,631.02 and 19,941.24

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Solution

The fourth proportional to 20,597.34, 30,631.02 and 19,941.24 is: 29,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.34 : 30,631.02 = 19,941.24 : x
  2. Step 2: Convert to fraction form
    20,597.34/30,631.02 = 19,941.24/x
  3. Step 3: Cross multiply
    20,597.34x = 30,631.02 × 19,941.24
  4. Step 4: Simplify right side
    20,597.34x = 610,820,521.26
  5. Step 5: Solve for x
    x = 610,820,521.26/20,597.34
  6. Step 6: Final answer
    x = 29,655.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.