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Finding the Fourth Proportional to 64,739.52, 89,334.45 and 47,753.01

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Solution

The fourth proportional to 64,739.52, 89,334.45 and 47,753.01 is: 65,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,739.52 : 89,334.45 = 47,753.01 : x
  2. Step 2: Convert to fraction form
    64,739.52/89,334.45 = 47,753.01/x
  3. Step 3: Cross multiply
    64,739.52x = 89,334.45 × 47,753.01
  4. Step 4: Simplify right side
    64,739.52x = 4,265,988,884.19
  5. Step 5: Solve for x
    x = 4,265,988,884.19/64,739.52
  6. Step 6: Final answer
    x = 65,894.66

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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.