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Finding the Fourth Proportional to 8,996.75, 12,415.58 and 5,018.12

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Solution

The fourth proportional to 8,996.75, 12,415.58 and 5,018.12 is: 6,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.75 : 12,415.58 = 5,018.12 : x
  2. Step 2: Convert to fraction form
    8,996.75/12,415.58 = 5,018.12/x
  3. Step 3: Cross multiply
    8,996.75x = 12,415.58 × 5,018.12
  4. Step 4: Simplify right side
    8,996.75x = 62,302,783.14
  5. Step 5: Solve for x
    x = 62,302,783.14/8,996.75
  6. Step 6: Final answer
    x = 6,925.04

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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.