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Finding the Fourth Proportional to 64,819.72, 89,417.06 and 44,641.64

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Solution

The fourth proportional to 64,819.72, 89,417.06 and 44,641.64 is: 61,581.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,819.72 : 89,417.06 = 44,641.64 : x
  2. Step 2: Convert to fraction form
    64,819.72/89,417.06 = 44,641.64/x
  3. Step 3: Cross multiply
    64,819.72x = 89,417.06 × 44,641.64
  4. Step 4: Simplify right side
    64,819.72x = 3,991,724,202.38
  5. Step 5: Solve for x
    x = 3,991,724,202.38/64,819.72
  6. Step 6: Final answer
    x = 61,581.94

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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.