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Finding the Fourth Proportional to 14,705.80, 22,026.30 and 12,761.80

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Solution

The fourth proportional to 14,705.80, 22,026.30 and 12,761.80 is: 19,114.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,705.80 : 22,026.30 = 12,761.80 : x
  2. Step 2: Convert to fraction form
    14,705.80/22,026.30 = 12,761.80/x
  3. Step 3: Cross multiply
    14,705.80x = 22,026.30 × 12,761.80
  4. Step 4: Simplify right side
    14,705.80x = 281,095,235.34
  5. Step 5: Solve for x
    x = 281,095,235.34/14,705.80
  6. Step 6: Final answer
    x = 19,114.58

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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.