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Finding the Fourth Proportional to 25,718.93, 35,491.93 and 14,388.38

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Solution

The fourth proportional to 25,718.93, 35,491.93 and 14,388.38 is: 19,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,718.93 : 35,491.93 = 14,388.38 : x
  2. Step 2: Convert to fraction form
    25,718.93/35,491.93 = 14,388.38/x
  3. Step 3: Cross multiply
    25,718.93x = 35,491.93 × 14,388.38
  4. Step 4: Simplify right side
    25,718.93x = 510,671,375.77
  5. Step 5: Solve for x
    x = 510,671,375.77/25,718.93
  6. Step 6: Final answer
    x = 19,855.86

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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.