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Finding the Fourth Proportional to 47,140.40, 65,053.74 and 25,921.04

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Solution

The fourth proportional to 47,140.40, 65,053.74 and 25,921.04 is: 35,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.40 : 65,053.74 = 25,921.04 : x
  2. Step 2: Convert to fraction form
    47,140.40/65,053.74 = 25,921.04/x
  3. Step 3: Cross multiply
    47,140.40x = 65,053.74 × 25,921.04
  4. Step 4: Simplify right side
    47,140.40x = 1,686,260,596.69
  5. Step 5: Solve for x
    x = 1,686,260,596.69/47,140.40
  6. Step 6: Final answer
    x = 35,771.03

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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.