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Finding the Fourth Proportional to 29,968.60, 44,952.90 and 21,213.40

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Solution

The fourth proportional to 29,968.60, 44,952.90 and 21,213.40 is: 31,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,968.60 : 44,952.90 = 21,213.40 : x
  2. Step 2: Convert to fraction form
    29,968.60/44,952.90 = 21,213.40/x
  3. Step 3: Cross multiply
    29,968.60x = 44,952.90 × 21,213.40
  4. Step 4: Simplify right side
    29,968.60x = 953,603,848.86
  5. Step 5: Solve for x
    x = 953,603,848.86/29,968.60
  6. Step 6: Final answer
    x = 31,820.10

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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.