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Finding the Fourth Proportional to 18,903.84, 26,045.84 and 14,103.52

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Solution

The fourth proportional to 18,903.84, 26,045.84 and 14,103.52 is: 19,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.84 : 26,045.84 = 14,103.52 : x
  2. Step 2: Convert to fraction form
    18,903.84/26,045.84 = 14,103.52/x
  3. Step 3: Cross multiply
    18,903.84x = 26,045.84 × 14,103.52
  4. Step 4: Simplify right side
    18,903.84x = 367,338,025.36
  5. Step 5: Solve for x
    x = 367,338,025.36/18,903.84
  6. Step 6: Final answer
    x = 19,431.93

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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.