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Finding the Fourth Proportional to 14,368.74, 21,533.94 and 6,958.44

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Solution

The fourth proportional to 14,368.74, 21,533.94 and 6,958.44 is: 10,428.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,368.74 : 21,533.94 = 6,958.44 : x
  2. Step 2: Convert to fraction form
    14,368.74/21,533.94 = 6,958.44/x
  3. Step 3: Cross multiply
    14,368.74x = 21,533.94 × 6,958.44
  4. Step 4: Simplify right side
    14,368.74x = 149,842,629.45
  5. Step 5: Solve for x
    x = 149,842,629.45/14,368.74
  6. Step 6: Final answer
    x = 10,428.38

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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.