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Finding the Fourth Proportional to 43,203, 64,810.98 and 15,507.48

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Solution

The fourth proportional to 43,203, 64,810.98 and 15,507.48 is: 23,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,203 : 64,810.98 = 15,507.48 : x
  2. Step 2: Convert to fraction form
    43,203/64,810.98 = 15,507.48/x
  3. Step 3: Cross multiply
    43,203x = 64,810.98 × 15,507.48
  4. Step 4: Simplify right side
    43,203x = 1,005,054,976.13
  5. Step 5: Solve for x
    x = 1,005,054,976.13/43,203
  6. Step 6: Final answer
    x = 23,263.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.