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Finding the Fourth Proportional to 44,678.72, 67,018.60 and 11,398.72

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Solution

The fourth proportional to 44,678.72, 67,018.60 and 11,398.72 is: 17,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,678.72 : 67,018.60 = 11,398.72 : x
  2. Step 2: Convert to fraction form
    44,678.72/67,018.60 = 11,398.72/x
  3. Step 3: Cross multiply
    44,678.72x = 67,018.60 × 11,398.72
  4. Step 4: Simplify right side
    44,678.72x = 763,926,256.19
  5. Step 5: Solve for x
    x = 763,926,256.19/44,678.72
  6. Step 6: Final answer
    x = 17,098.21

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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.