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Finding the Fourth Proportional to 64,855.28, 89,500.26 and 35,047.28

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Solution

The fourth proportional to 64,855.28, 89,500.26 and 35,047.28 is: 48,365.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,855.28 : 89,500.26 = 35,047.28 : x
  2. Step 2: Convert to fraction form
    64,855.28/89,500.26 = 35,047.28/x
  3. Step 3: Cross multiply
    64,855.28x = 89,500.26 × 35,047.28
  4. Step 4: Simplify right side
    64,855.28x = 3,136,740,672.29
  5. Step 5: Solve for x
    x = 3,136,740,672.29/64,855.28
  6. Step 6: Final answer
    x = 48,365.23

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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.