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Finding the Fourth Proportional to 47,238.99, 70,859.54 and 17,640.67

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Solution

The fourth proportional to 47,238.99, 70,859.54 and 17,640.67 is: 26,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,238.99 : 70,859.54 = 17,640.67 : x
  2. Step 2: Convert to fraction form
    47,238.99/70,859.54 = 17,640.67/x
  3. Step 3: Cross multiply
    47,238.99x = 70,859.54 × 17,640.67
  4. Step 4: Simplify right side
    47,238.99x = 1,250,009,761.49
  5. Step 5: Solve for x
    x = 1,250,009,761.49/47,238.99
  6. Step 6: Final answer
    x = 26,461.40

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1.5x scale

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.