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Finding the Fourth Proportional to 18,975.84, 26,186.06 and 10,477.84

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Solution

The fourth proportional to 18,975.84, 26,186.06 and 10,477.84 is: 14,459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.84 : 26,186.06 = 10,477.84 : x
  2. Step 2: Convert to fraction form
    18,975.84/26,186.06 = 10,477.84/x
  3. Step 3: Cross multiply
    18,975.84x = 26,186.06 × 10,477.84
  4. Step 4: Simplify right side
    18,975.84x = 274,373,346.91
  5. Step 5: Solve for x
    x = 274,373,346.91/18,975.84
  6. Step 6: Final answer
    x = 14,459.09

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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.