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Finding the Fourth Proportional to 17,953.71, 24,779.07 and 13,696.74

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Solution

The fourth proportional to 17,953.71, 24,779.07 and 13,696.74 is: 18,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.71 : 24,779.07 = 13,696.74 : x
  2. Step 2: Convert to fraction form
    17,953.71/24,779.07 = 13,696.74/x
  3. Step 3: Cross multiply
    17,953.71x = 24,779.07 × 13,696.74
  4. Step 4: Simplify right side
    17,953.71x = 339,392,479.23
  5. Step 5: Solve for x
    x = 339,392,479.23/17,953.71
  6. Step 6: Final answer
    x = 18,903.75

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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.