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Finding the Fourth Proportional to 64,881.89, 97,337.24 and 19,909.50

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Solution

The fourth proportional to 64,881.89, 97,337.24 and 19,909.50 is: 29,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,881.89 : 97,337.24 = 19,909.50 : x
  2. Step 2: Convert to fraction form
    64,881.89/97,337.24 = 19,909.50/x
  3. Step 3: Cross multiply
    64,881.89x = 97,337.24 × 19,909.50
  4. Step 4: Simplify right side
    64,881.89x = 1,937,935,501.87
  5. Step 5: Solve for x
    x = 1,937,935,501.87/64,881.89
  6. Step 6: Final answer
    x = 29,868.67

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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.