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Finding the Fourth Proportional to 64,226.60, 96,349.12 and 19,856.81

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Solution

The fourth proportional to 64,226.60, 96,349.12 and 19,856.81 is: 29,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,226.60 : 96,349.12 = 19,856.81 : x
  2. Step 2: Convert to fraction form
    64,226.60/96,349.12 = 19,856.81/x
  3. Step 3: Cross multiply
    64,226.60x = 96,349.12 × 19,856.81
  4. Step 4: Simplify right side
    64,226.60x = 1,913,186,169.51
  5. Step 5: Solve for x
    x = 1,913,186,169.51/64,226.60
  6. Step 6: Final answer
    x = 29,788.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.