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Finding the Fourth Proportional to 65,003.40, 97,516.98 and 20,641.32

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Solution

The fourth proportional to 65,003.40, 97,516.98 and 20,641.32 is: 30,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,003.40 : 97,516.98 = 20,641.32 : x
  2. Step 2: Convert to fraction form
    65,003.40/97,516.98 = 20,641.32/x
  3. Step 3: Cross multiply
    65,003.40x = 97,516.98 × 20,641.32
  4. Step 4: Simplify right side
    65,003.40x = 2,012,879,189.61
  5. Step 5: Solve for x
    x = 2,012,879,189.61/65,003.40
  6. Step 6: Final answer
    x = 30,965.75

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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.