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Finding the Fourth Proportional to 45,802.65, 68,714.70 and 14,211.09

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Solution

The fourth proportional to 45,802.65, 68,714.70 and 14,211.09 is: 21,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,802.65 : 68,714.70 = 14,211.09 : x
  2. Step 2: Convert to fraction form
    45,802.65/68,714.70 = 14,211.09/x
  3. Step 3: Cross multiply
    45,802.65x = 68,714.70 × 14,211.09
  4. Step 4: Simplify right side
    45,802.65x = 976,510,786.02
  5. Step 5: Solve for x
    x = 976,510,786.02/45,802.65
  6. Step 6: Final answer
    x = 21,319.96

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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.