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Finding the Fourth Proportional to 64,455.21, 88,947.51 and 35,775.11

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Solution

The fourth proportional to 64,455.21, 88,947.51 and 35,775.11 is: 49,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,455.21 : 88,947.51 = 35,775.11 : x
  2. Step 2: Convert to fraction form
    64,455.21/88,947.51 = 35,775.11/x
  3. Step 3: Cross multiply
    64,455.21x = 88,947.51 × 35,775.11
  4. Step 4: Simplify right side
    64,455.21x = 3,182,106,954.48
  5. Step 5: Solve for x
    x = 3,182,106,954.48/64,455.21
  6. Step 6: Final answer
    x = 49,369.27

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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.