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Finding the Fourth Proportional to 85,357.98, 128,053.44 and 32,763.36

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Solution

The fourth proportional to 85,357.98, 128,053.44 and 32,763.36 is: 49,151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,357.98 : 128,053.44 = 32,763.36 : x
  2. Step 2: Convert to fraction form
    85,357.98/128,053.44 = 32,763.36/x
  3. Step 3: Cross multiply
    85,357.98x = 128,053.44 × 32,763.36
  4. Step 4: Simplify right side
    85,357.98x = 4,195,460,953.96
  5. Step 5: Solve for x
    x = 4,195,460,953.96/85,357.98
  6. Step 6: Final answer
    x = 49,151.36

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1.5x scale

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.