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Finding the Fourth Proportional to 44,978.29, 67,455.65 and 13,379.86

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Solution

The fourth proportional to 44,978.29, 67,455.65 and 13,379.86 is: 20,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,978.29 : 67,455.65 = 13,379.86 : x
  2. Step 2: Convert to fraction form
    44,978.29/67,455.65 = 13,379.86/x
  3. Step 3: Cross multiply
    44,978.29x = 67,455.65 × 13,379.86
  4. Step 4: Simplify right side
    44,978.29x = 902,547,153.21
  5. Step 5: Solve for x
    x = 902,547,153.21/44,978.29
  6. Step 6: Final answer
    x = 20,066.28

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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.