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Finding the Fourth Proportional to 14,178.30, 21,277.08 and 4,944.30

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Solution

The fourth proportional to 14,178.30, 21,277.08 and 4,944.30 is: 7,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.30 : 21,277.08 = 4,944.30 : x
  2. Step 2: Convert to fraction form
    14,178.30/21,277.08 = 4,944.30/x
  3. Step 3: Cross multiply
    14,178.30x = 21,277.08 × 4,944.30
  4. Step 4: Simplify right side
    14,178.30x = 105,200,266.64
  5. Step 5: Solve for x
    x = 105,200,266.64/14,178.30
  6. Step 6: Final answer
    x = 7,419.81

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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.