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Finding the Fourth Proportional to 64,178.64, 88,593.48 and 39,036.88

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Solution

The fourth proportional to 64,178.64, 88,593.48 and 39,036.88 is: 53,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,178.64 : 88,593.48 = 39,036.88 : x
  2. Step 2: Convert to fraction form
    64,178.64/88,593.48 = 39,036.88/x
  3. Step 3: Cross multiply
    64,178.64x = 88,593.48 × 39,036.88
  4. Step 4: Simplify right side
    64,178.64x = 3,458,413,047.54
  5. Step 5: Solve for x
    x = 3,458,413,047.54/64,178.64
  6. Step 6: Final answer
    x = 53,887.29

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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.