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Finding the Fourth Proportional to 44,005.80, 65,816.70 and 39,359.40

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Solution

The fourth proportional to 44,005.80, 65,816.70 and 39,359.40 is: 58,867.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,005.80 : 65,816.70 = 39,359.40 : x
  2. Step 2: Convert to fraction form
    44,005.80/65,816.70 = 39,359.40/x
  3. Step 3: Cross multiply
    44,005.80x = 65,816.70 × 39,359.40
  4. Step 4: Simplify right side
    44,005.80x = 2,590,505,821.98
  5. Step 5: Solve for x
    x = 2,590,505,821.98/44,005.80
  6. Step 6: Final answer
    x = 58,867.37

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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.