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Finding the Fourth Proportional to 25,897.66, 35,733.42 and 15,140.46

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Solution

The fourth proportional to 25,897.66, 35,733.42 and 15,140.46 is: 20,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,897.66 : 35,733.42 = 15,140.46 : x
  2. Step 2: Convert to fraction form
    25,897.66/35,733.42 = 15,140.46/x
  3. Step 3: Cross multiply
    25,897.66x = 35,733.42 × 15,140.46
  4. Step 4: Simplify right side
    25,897.66x = 541,020,416.17
  5. Step 5: Solve for x
    x = 541,020,416.17/25,897.66
  6. Step 6: Final answer
    x = 20,890.71

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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.