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Finding the Fourth Proportional to 14,415.50, 19,890.34 and 8,753.22

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Solution

The fourth proportional to 14,415.50, 19,890.34 and 8,753.22 is: 12,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.50 : 19,890.34 = 8,753.22 : x
  2. Step 2: Convert to fraction form
    14,415.50/19,890.34 = 8,753.22/x
  3. Step 3: Cross multiply
    14,415.50x = 19,890.34 × 8,753.22
  4. Step 4: Simplify right side
    14,415.50x = 174,104,521.89
  5. Step 5: Solve for x
    x = 174,104,521.89/14,415.50
  6. Step 6: Final answer
    x = 12,077.59

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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.