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Finding the Fourth Proportional to 47,130.88, 65,038.94 and 25,910

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Solution

The fourth proportional to 47,130.88, 65,038.94 and 25,910 is: 35,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,130.88 : 65,038.94 = 25,910 : x
  2. Step 2: Convert to fraction form
    47,130.88/65,038.94 = 25,910/x
  3. Step 3: Cross multiply
    47,130.88x = 65,038.94 × 25,910
  4. Step 4: Simplify right side
    47,130.88x = 1,685,158,935.40
  5. Step 5: Solve for x
    x = 1,685,158,935.40/47,130.88
  6. Step 6: Final answer
    x = 35,754.88

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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.