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Finding the Fourth Proportional to 64,554.38, 88,879.10 and 54,457.73

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Solution

The fourth proportional to 64,554.38, 88,879.10 and 54,457.73 is: 74,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,554.38 : 88,879.10 = 54,457.73 : x
  2. Step 2: Convert to fraction form
    64,554.38/88,879.10 = 54,457.73/x
  3. Step 3: Cross multiply
    64,554.38x = 88,879.10 × 54,457.73
  4. Step 4: Simplify right side
    64,554.38x = 4,840,153,313.76
  5. Step 5: Solve for x
    x = 4,840,153,313.76/64,554.38
  6. Step 6: Final answer
    x = 74,977.93

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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.