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Finding the Fourth Proportional to 14,606.10, 21,923.55 and 7,218.90

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Solution

The fourth proportional to 14,606.10, 21,923.55 and 7,218.90 is: 10,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,606.10 : 21,923.55 = 7,218.90 : x
  2. Step 2: Convert to fraction form
    14,606.10/21,923.55 = 7,218.90/x
  3. Step 3: Cross multiply
    14,606.10x = 21,923.55 × 7,218.90
  4. Step 4: Simplify right side
    14,606.10x = 158,263,915.10
  5. Step 5: Solve for x
    x = 158,263,915.10/14,606.10
  6. Step 6: Final answer
    x = 10,835.47

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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.