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Finding the Fourth Proportional to 18,341.32, 25,311.63 and 10,275.32

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Solution

The fourth proportional to 18,341.32, 25,311.63 and 10,275.32 is: 14,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.32 : 25,311.63 = 10,275.32 : x
  2. Step 2: Convert to fraction form
    18,341.32/25,311.63 = 10,275.32/x
  3. Step 3: Cross multiply
    18,341.32x = 25,311.63 × 10,275.32
  4. Step 4: Simplify right side
    18,341.32x = 260,085,097.97
  5. Step 5: Solve for x
    x = 260,085,097.97/18,341.32
  6. Step 6: Final answer
    x = 14,180.28

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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.