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Finding the Fourth Proportional to 18,860.84, 26,028.24 and 10,477.88

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Solution

The fourth proportional to 18,860.84, 26,028.24 and 10,477.88 is: 14,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.84 : 26,028.24 = 10,477.88 : x
  2. Step 2: Convert to fraction form
    18,860.84/26,028.24 = 10,477.88/x
  3. Step 3: Cross multiply
    18,860.84x = 26,028.24 × 10,477.88
  4. Step 4: Simplify right side
    18,860.84x = 272,720,775.33
  5. Step 5: Solve for x
    x = 272,720,775.33/18,860.84
  6. Step 6: Final answer
    x = 14,459.63

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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.