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Finding the Fourth Proportional to 48,602.64, 72,903.96 and 11,666.64

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Solution

The fourth proportional to 48,602.64, 72,903.96 and 11,666.64 is: 17,499.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,602.64 : 72,903.96 = 11,666.64 : x
  2. Step 2: Convert to fraction form
    48,602.64/72,903.96 = 11,666.64/x
  3. Step 3: Cross multiply
    48,602.64x = 72,903.96 × 11,666.64
  4. Step 4: Simplify right side
    48,602.64x = 850,544,255.89
  5. Step 5: Solve for x
    x = 850,544,255.89/48,602.64
  6. Step 6: Final answer
    x = 17,499.96

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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.