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Finding the Fourth Proportional to 14,653.80, 21,948.30 and 12,061.80

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Solution

The fourth proportional to 14,653.80, 21,948.30 and 12,061.80 is: 18,066.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.80 : 21,948.30 = 12,061.80 : x
  2. Step 2: Convert to fraction form
    14,653.80/21,948.30 = 12,061.80/x
  3. Step 3: Cross multiply
    14,653.80x = 21,948.30 × 12,061.80
  4. Step 4: Simplify right side
    14,653.80x = 264,736,004.94
  5. Step 5: Solve for x
    x = 264,736,004.94/14,653.80
  6. Step 6: Final answer
    x = 18,066.03

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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.