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Finding the Fourth Proportional to 64,802.64, 89,428.68 and 36,124.68

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Solution

The fourth proportional to 64,802.64, 89,428.68 and 36,124.68 is: 49,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,802.64 : 89,428.68 = 36,124.68 : x
  2. Step 2: Convert to fraction form
    64,802.64/89,428.68 = 36,124.68/x
  3. Step 3: Cross multiply
    64,802.64x = 89,428.68 × 36,124.68
  4. Step 4: Simplify right side
    64,802.64x = 3,230,582,447.82
  5. Step 5: Solve for x
    x = 3,230,582,447.82/64,802.64
  6. Step 6: Final answer
    x = 49,852.64

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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.