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Finding the Fourth Proportional to 14,989.64, 22,440.18 and 14,348.12

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Solution

The fourth proportional to 14,989.64, 22,440.18 and 14,348.12 is: 21,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.64 : 22,440.18 = 14,348.12 : x
  2. Step 2: Convert to fraction form
    14,989.64/22,440.18 = 14,348.12/x
  3. Step 3: Cross multiply
    14,989.64x = 22,440.18 × 14,348.12
  4. Step 4: Simplify right side
    14,989.64x = 321,974,395.46
  5. Step 5: Solve for x
    x = 321,974,395.46/14,989.64
  6. Step 6: Final answer
    x = 21,479.80

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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.