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Finding the Fourth Proportional to 64,879.08, 89,533.26 and 35,071.08

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Solution

The fourth proportional to 64,879.08, 89,533.26 and 35,071.08 is: 48,398.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.08 : 89,533.26 = 35,071.08 : x
  2. Step 2: Convert to fraction form
    64,879.08/89,533.26 = 35,071.08/x
  3. Step 3: Cross multiply
    64,879.08x = 89,533.26 × 35,071.08
  4. Step 4: Simplify right side
    64,879.08x = 3,140,028,124.12
  5. Step 5: Solve for x
    x = 3,140,028,124.12/64,879.08
  6. Step 6: Final answer
    x = 48,398.16

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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.