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Finding the Fourth Proportional to 14,858.80, 20,492.06 and 9,192.65

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Solution

The fourth proportional to 14,858.80, 20,492.06 and 9,192.65 is: 12,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,858.80 : 20,492.06 = 9,192.65 : x
  2. Step 2: Convert to fraction form
    14,858.80/20,492.06 = 9,192.65/x
  3. Step 3: Cross multiply
    14,858.80x = 20,492.06 × 9,192.65
  4. Step 4: Simplify right side
    14,858.80x = 188,376,186.94
  5. Step 5: Solve for x
    x = 188,376,186.94/14,858.80
  6. Step 6: Final answer
    x = 12,677.75

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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.