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Finding the Fourth Proportional to 65,365.73, 90,202.96 and 37,070.81

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Solution

The fourth proportional to 65,365.73, 90,202.96 and 37,070.81 is: 51,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,365.73 : 90,202.96 = 37,070.81 : x
  2. Step 2: Convert to fraction form
    65,365.73/90,202.96 = 37,070.81/x
  3. Step 3: Cross multiply
    65,365.73x = 90,202.96 × 37,070.81
  4. Step 4: Simplify right side
    65,365.73x = 3,343,896,791.60
  5. Step 5: Solve for x
    x = 3,343,896,791.60/65,365.73
  6. Step 6: Final answer
    x = 51,156.73

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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.