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Finding the Fourth Proportional to 64,868.28, 89,518.38 and 35,060.28

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Solution

The fourth proportional to 64,868.28, 89,518.38 and 35,060.28 is: 48,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.28 : 89,518.38 = 35,060.28 : x
  2. Step 2: Convert to fraction form
    64,868.28/89,518.38 = 35,060.28/x
  3. Step 3: Cross multiply
    64,868.28x = 89,518.38 × 35,060.28
  4. Step 4: Simplify right side
    64,868.28x = 3,138,539,467.95
  5. Step 5: Solve for x
    x = 3,138,539,467.95/64,868.28
  6. Step 6: Final answer
    x = 48,383.27

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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.