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Finding the Fourth Proportional to 10,918.84, 16,378.08 and 2,710.84

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Solution

The fourth proportional to 10,918.84, 16,378.08 and 2,710.84 is: 4,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.84 : 16,378.08 = 2,710.84 : x
  2. Step 2: Convert to fraction form
    10,918.84/16,378.08 = 2,710.84/x
  3. Step 3: Cross multiply
    10,918.84x = 16,378.08 × 2,710.84
  4. Step 4: Simplify right side
    10,918.84x = 44,398,354.39
  5. Step 5: Solve for x
    x = 44,398,354.39/10,918.84
  6. Step 6: Final answer
    x = 4,066.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.