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Finding the Fourth Proportional to 44,978.16, 67,455.48 and 13,379.72

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Solution

The fourth proportional to 44,978.16, 67,455.48 and 13,379.72 is: 20,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,978.16 : 67,455.48 = 13,379.72 : x
  2. Step 2: Convert to fraction form
    44,978.16/67,455.48 = 13,379.72/x
  3. Step 3: Cross multiply
    44,978.16x = 67,455.48 × 13,379.72
  4. Step 4: Simplify right side
    44,978.16x = 902,535,434.87
  5. Step 5: Solve for x
    x = 902,535,434.87/44,978.16
  6. Step 6: Final answer
    x = 20,066.08

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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.