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Finding the Fourth Proportional to 18,275.04, 25,218.10 and 10,318.04

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Solution

The fourth proportional to 18,275.04, 25,218.10 and 10,318.04 is: 14,238.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.04 : 25,218.10 = 10,318.04 : x
  2. Step 2: Convert to fraction form
    18,275.04/25,218.10 = 10,318.04/x
  3. Step 3: Cross multiply
    18,275.04x = 25,218.10 × 10,318.04
  4. Step 4: Simplify right side
    18,275.04x = 260,201,364.52
  5. Step 5: Solve for x
    x = 260,201,364.52/18,275.04
  6. Step 6: Final answer
    x = 14,238.07

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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.