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Finding the Fourth Proportional to 14,750.10, 20,308.12 and 13,744.08

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Solution

The fourth proportional to 14,750.10, 20,308.12 and 13,744.08 is: 18,923.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.10 : 20,308.12 = 13,744.08 : x
  2. Step 2: Convert to fraction form
    14,750.10/20,308.12 = 13,744.08/x
  3. Step 3: Cross multiply
    14,750.10x = 20,308.12 × 13,744.08
  4. Step 4: Simplify right side
    14,750.10x = 279,116,391.57
  5. Step 5: Solve for x
    x = 279,116,391.57/14,750.10
  6. Step 6: Final answer
    x = 18,923.02

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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.