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Finding the Fourth Proportional to 43,369.70, 59,866.70 and 28,266.03

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Solution

The fourth proportional to 43,369.70, 59,866.70 and 28,266.03 is: 39,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,369.70 : 59,866.70 = 28,266.03 : x
  2. Step 2: Convert to fraction form
    43,369.70/59,866.70 = 28,266.03/x
  3. Step 3: Cross multiply
    43,369.70x = 59,866.70 × 28,266.03
  4. Step 4: Simplify right side
    43,369.70x = 1,692,193,796.87
  5. Step 5: Solve for x
    x = 1,692,193,796.87/43,369.70
  6. Step 6: Final answer
    x = 39,017.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.