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Finding the Fourth Proportional to 18,653.93, 25,751.93 and 14,395.43

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Solution

The fourth proportional to 18,653.93, 25,751.93 and 14,395.43 is: 19,873.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.93 : 25,751.93 = 14,395.43 : x
  2. Step 2: Convert to fraction form
    18,653.93/25,751.93 = 14,395.43/x
  3. Step 3: Cross multiply
    18,653.93x = 25,751.93 × 14,395.43
  4. Step 4: Simplify right side
    18,653.93x = 370,710,012.91
  5. Step 5: Solve for x
    x = 370,710,012.91/18,653.93
  6. Step 6: Final answer
    x = 19,873.02

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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.