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Finding the Fourth Proportional to 65,290.26, 97,889.22 and 33,686.90

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Solution

The fourth proportional to 65,290.26, 97,889.22 and 33,686.90 is: 50,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,290.26 : 97,889.22 = 33,686.90 : x
  2. Step 2: Convert to fraction form
    65,290.26/97,889.22 = 33,686.90/x
  3. Step 3: Cross multiply
    65,290.26x = 97,889.22 × 33,686.90
  4. Step 4: Simplify right side
    65,290.26x = 3,297,583,875.77
  5. Step 5: Solve for x
    x = 3,297,583,875.77/65,290.26
  6. Step 6: Final answer
    x = 50,506.52

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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.