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Finding the Fourth Proportional to 14,765.42, 21,983.42 and 14,558.60

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Solution

The fourth proportional to 14,765.42, 21,983.42 and 14,558.60 is: 21,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.42 : 21,983.42 = 14,558.60 : x
  2. Step 2: Convert to fraction form
    14,765.42/21,983.42 = 14,558.60/x
  3. Step 3: Cross multiply
    14,765.42x = 21,983.42 × 14,558.60
  4. Step 4: Simplify right side
    14,765.42x = 320,047,690.30
  5. Step 5: Solve for x
    x = 320,047,690.30/14,765.42
  6. Step 6: Final answer
    x = 21,675.50

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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.