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Finding the Fourth Proportional to 14,412.34, 19,893.99 and 8,445.94

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Solution

The fourth proportional to 14,412.34, 19,893.99 and 8,445.94 is: 11,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.34 : 19,893.99 = 8,445.94 : x
  2. Step 2: Convert to fraction form
    14,412.34/19,893.99 = 8,445.94/x
  3. Step 3: Cross multiply
    14,412.34x = 19,893.99 × 8,445.94
  4. Step 4: Simplify right side
    14,412.34x = 168,023,445.90
  5. Step 5: Solve for x
    x = 168,023,445.90/14,412.34
  6. Step 6: Final answer
    x = 11,658.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.