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Finding the Fourth Proportional to 14,455.72, 21,673.05 and 9,764.11

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Solution

The fourth proportional to 14,455.72, 21,673.05 and 9,764.11 is: 14,639.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.72 : 21,673.05 = 9,764.11 : x
  2. Step 2: Convert to fraction form
    14,455.72/21,673.05 = 9,764.11/x
  3. Step 3: Cross multiply
    14,455.72x = 21,673.05 × 9,764.11
  4. Step 4: Simplify right side
    14,455.72x = 211,618,044.24
  5. Step 5: Solve for x
    x = 211,618,044.24/14,455.72
  6. Step 6: Final answer
    x = 14,639.05

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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.