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Finding the Fourth Proportional to 18,587.95, 25,650.95 and 10,629.70

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Solution

The fourth proportional to 18,587.95, 25,650.95 and 10,629.70 is: 14,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.95 : 25,650.95 = 10,629.70 : x
  2. Step 2: Convert to fraction form
    18,587.95/25,650.95 = 10,629.70/x
  3. Step 3: Cross multiply
    18,587.95x = 25,650.95 × 10,629.70
  4. Step 4: Simplify right side
    18,587.95x = 272,661,785.94
  5. Step 5: Solve for x
    x = 272,661,785.94/18,587.95
  6. Step 6: Final answer
    x = 14,668.74

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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.