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Finding the Fourth Proportional to 64,478.06, 96,719.70 and 16,447.93

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Solution

The fourth proportional to 64,478.06, 96,719.70 and 16,447.93 is: 24,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.06 : 96,719.70 = 16,447.93 : x
  2. Step 2: Convert to fraction form
    64,478.06/96,719.70 = 16,447.93/x
  3. Step 3: Cross multiply
    64,478.06x = 96,719.70 × 16,447.93
  4. Step 4: Simplify right side
    64,478.06x = 1,590,838,675.10
  5. Step 5: Solve for x
    x = 1,590,838,675.10/64,478.06
  6. Step 6: Final answer
    x = 24,672.56

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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.