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Finding the Fourth Proportional to 64,879.58, 89,533.95 and 35,071.58

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Solution

The fourth proportional to 64,879.58, 89,533.95 and 35,071.58 is: 48,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.58 : 89,533.95 = 35,071.58 : x
  2. Step 2: Convert to fraction form
    64,879.58/89,533.95 = 35,071.58/x
  3. Step 3: Cross multiply
    64,879.58x = 89,533.95 × 35,071.58
  4. Step 4: Simplify right side
    64,879.58x = 3,140,097,090.14
  5. Step 5: Solve for x
    x = 3,140,097,090.14/64,879.58
  6. Step 6: Final answer
    x = 48,398.85

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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.