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Finding the Fourth Proportional to 64,483.63, 88,987.46 and 36,189.32

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Solution

The fourth proportional to 64,483.63, 88,987.46 and 36,189.32 is: 49,941.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,483.63 : 88,987.46 = 36,189.32 : x
  2. Step 2: Convert to fraction form
    64,483.63/88,987.46 = 36,189.32/x
  3. Step 3: Cross multiply
    64,483.63x = 88,987.46 × 36,189.32
  4. Step 4: Simplify right side
    64,483.63x = 3,220,395,040.04
  5. Step 5: Solve for x
    x = 3,220,395,040.04/64,483.63
  6. Step 6: Final answer
    x = 49,941.28

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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.