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Finding the Fourth Proportional to 64,931.15, 97,401.05 and 22,806.11

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Solution

The fourth proportional to 64,931.15, 97,401.05 and 22,806.11 is: 34,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,931.15 : 97,401.05 = 22,806.11 : x
  2. Step 2: Convert to fraction form
    64,931.15/97,401.05 = 22,806.11/x
  3. Step 3: Cross multiply
    64,931.15x = 97,401.05 × 22,806.11
  4. Step 4: Simplify right side
    64,931.15x = 2,221,339,060.42
  5. Step 5: Solve for x
    x = 2,221,339,060.42/64,931.15
  6. Step 6: Final answer
    x = 34,210.68

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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.