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Finding the Fourth Proportional to 62,539.28, 86,243.64 and 52,978.32

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Solution

The fourth proportional to 62,539.28, 86,243.64 and 52,978.32 is: 73,058.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,539.28 : 86,243.64 = 52,978.32 : x
  2. Step 2: Convert to fraction form
    62,539.28/86,243.64 = 52,978.32/x
  3. Step 3: Cross multiply
    62,539.28x = 86,243.64 × 52,978.32
  4. Step 4: Simplify right side
    62,539.28x = 4,569,043,157.88
  5. Step 5: Solve for x
    x = 4,569,043,157.88/62,539.28
  6. Step 6: Final answer
    x = 73,058.77

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1.5x scale

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.