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Finding the Fourth Proportional to 65,985.94, 91,039.19 and 37,302.83

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Solution

The fourth proportional to 65,985.94, 91,039.19 and 37,302.83 is: 51,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,985.94 : 91,039.19 = 37,302.83 : x
  2. Step 2: Convert to fraction form
    65,985.94/91,039.19 = 37,302.83/x
  3. Step 3: Cross multiply
    65,985.94x = 91,039.19 × 37,302.83
  4. Step 4: Simplify right side
    65,985.94x = 3,396,019,427.91
  5. Step 5: Solve for x
    x = 3,396,019,427.91/65,985.94
  6. Step 6: Final answer
    x = 51,465.80

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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.