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Finding the Fourth Proportional to 44,695.80, 66,970.80 and 38,426.40

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Solution

The fourth proportional to 44,695.80, 66,970.80 and 38,426.40 is: 57,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,695.80 : 66,970.80 = 38,426.40 : x
  2. Step 2: Convert to fraction form
    44,695.80/66,970.80 = 38,426.40/x
  3. Step 3: Cross multiply
    44,695.80x = 66,970.80 × 38,426.40
  4. Step 4: Simplify right side
    44,695.80x = 2,573,446,749.12
  5. Step 5: Solve for x
    x = 2,573,446,749.12/44,695.80
  6. Step 6: Final answer
    x = 57,576.93

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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.