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Finding the Fourth Proportional to 64,873.21, 96,664.94 and 57,798.88

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Solution

The fourth proportional to 64,873.21, 96,664.94 and 57,798.88 is: 86,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,873.21 : 96,664.94 = 57,798.88 : x
  2. Step 2: Convert to fraction form
    64,873.21/96,664.94 = 57,798.88/x
  3. Step 3: Cross multiply
    64,873.21x = 96,664.94 × 57,798.88
  4. Step 4: Simplify right side
    64,873.21x = 5,587,125,267.27
  5. Step 5: Solve for x
    x = 5,587,125,267.27/64,873.21
  6. Step 6: Final answer
    x = 86,123.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.