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Finding the Fourth Proportional to 65,208.90, 97,818.76 and 20,841.96

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Solution

The fourth proportional to 65,208.90, 97,818.76 and 20,841.96 is: 31,264.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,208.90 : 97,818.76 = 20,841.96 : x
  2. Step 2: Convert to fraction form
    65,208.90/97,818.76 = 20,841.96/x
  3. Step 3: Cross multiply
    65,208.90x = 97,818.76 × 20,841.96
  4. Step 4: Simplify right side
    65,208.90x = 2,038,734,683.17
  5. Step 5: Solve for x
    x = 2,038,734,683.17/65,208.90
  6. Step 6: Final answer
    x = 31,264.67

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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.