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Finding the Fourth Proportional to 21,474.60, 32,211.90 and 14,913.60

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Solution

The fourth proportional to 21,474.60, 32,211.90 and 14,913.60 is: 22,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.60 : 32,211.90 = 14,913.60 : x
  2. Step 2: Convert to fraction form
    21,474.60/32,211.90 = 14,913.60/x
  3. Step 3: Cross multiply
    21,474.60x = 32,211.90 × 14,913.60
  4. Step 4: Simplify right side
    21,474.60x = 480,395,391.84
  5. Step 5: Solve for x
    x = 480,395,391.84/21,474.60
  6. Step 6: Final answer
    x = 22,370.40

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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.