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Finding the Fourth Proportional to 71,325.57, 98,430.50 and 39,059.67

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Solution

The fourth proportional to 71,325.57, 98,430.50 and 39,059.67 is: 53,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.57 : 98,430.50 = 39,059.67 : x
  2. Step 2: Convert to fraction form
    71,325.57/98,430.50 = 39,059.67/x
  3. Step 3: Cross multiply
    71,325.57x = 98,430.50 × 39,059.67
  4. Step 4: Simplify right side
    71,325.57x = 3,844,662,847.94
  5. Step 5: Solve for x
    x = 3,844,662,847.94/71,325.57
  6. Step 6: Final answer
    x = 53,903.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.