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Finding the Fourth Proportional to 18,659.25, 25,749.95 and 10,275.93

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Solution

The fourth proportional to 18,659.25, 25,749.95 and 10,275.93 is: 14,180.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.25 : 25,749.95 = 10,275.93 : x
  2. Step 2: Convert to fraction form
    18,659.25/25,749.95 = 10,275.93/x
  3. Step 3: Cross multiply
    18,659.25x = 25,749.95 × 10,275.93
  4. Step 4: Simplify right side
    18,659.25x = 264,604,632.32
  5. Step 5: Solve for x
    x = 264,604,632.32/18,659.25
  6. Step 6: Final answer
    x = 14,180.88

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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.