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Finding the Fourth Proportional to 18,855.48, 26,019.04 and 10,898.22

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Solution

The fourth proportional to 18,855.48, 26,019.04 and 10,898.22 is: 15,038.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.48 : 26,019.04 = 10,898.22 : x
  2. Step 2: Convert to fraction form
    18,855.48/26,019.04 = 10,898.22/x
  3. Step 3: Cross multiply
    18,855.48x = 26,019.04 × 10,898.22
  4. Step 4: Simplify right side
    18,855.48x = 283,561,222.11
  5. Step 5: Solve for x
    x = 283,561,222.11/18,855.48
  6. Step 6: Final answer
    x = 15,038.66

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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.