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Finding the Fourth Proportional to 14,362.65, 19,820.84 and 8,696.36

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Solution

The fourth proportional to 14,362.65, 19,820.84 and 8,696.36 is: 12,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,362.65 : 19,820.84 = 8,696.36 : x
  2. Step 2: Convert to fraction form
    14,362.65/19,820.84 = 8,696.36/x
  3. Step 3: Cross multiply
    14,362.65x = 19,820.84 × 8,696.36
  4. Step 4: Simplify right side
    14,362.65x = 172,369,166.21
  5. Step 5: Solve for x
    x = 172,369,166.21/14,362.65
  6. Step 6: Final answer
    x = 12,001.21

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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.