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Finding the Fourth Proportional to 64,652.64, 89,202.24 and 38,800.68

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Solution

The fourth proportional to 64,652.64, 89,202.24 and 38,800.68 is: 53,533.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,652.64 : 89,202.24 = 38,800.68 : x
  2. Step 2: Convert to fraction form
    64,652.64/89,202.24 = 38,800.68/x
  3. Step 3: Cross multiply
    64,652.64x = 89,202.24 × 38,800.68
  4. Step 4: Simplify right side
    64,652.64x = 3,461,107,569.52
  5. Step 5: Solve for x
    x = 3,461,107,569.52/64,652.64
  6. Step 6: Final answer
    x = 53,533.89

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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.