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Finding the Fourth Proportional to 18,322.71, 25,284.61 and 10,366.58

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Solution

The fourth proportional to 18,322.71, 25,284.61 and 10,366.58 is: 14,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.71 : 25,284.61 = 10,366.58 : x
  2. Step 2: Convert to fraction form
    18,322.71/25,284.61 = 10,366.58/x
  3. Step 3: Cross multiply
    18,322.71x = 25,284.61 × 10,366.58
  4. Step 4: Simplify right side
    18,322.71x = 262,114,950.19
  5. Step 5: Solve for x
    x = 262,114,950.19/18,322.71
  6. Step 6: Final answer
    x = 14,305.47

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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.