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Finding the Fourth Proportional to 64,884.70, 97,368.05 and 25,440.76

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Solution

The fourth proportional to 64,884.70, 97,368.05 and 25,440.76 is: 38,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,884.70 : 97,368.05 = 25,440.76 : x
  2. Step 2: Convert to fraction form
    64,884.70/97,368.05 = 25,440.76/x
  3. Step 3: Cross multiply
    64,884.70x = 97,368.05 × 25,440.76
  4. Step 4: Simplify right side
    64,884.70x = 2,477,117,191.72
  5. Step 5: Solve for x
    x = 2,477,117,191.72/64,884.70
  6. Step 6: Final answer
    x = 38,177.22

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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.