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Finding the Fourth Proportional to 46,990.63, 70,498.96 and 21,697.87

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Solution

The fourth proportional to 46,990.63, 70,498.96 and 21,697.87 is: 32,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,990.63 : 70,498.96 = 21,697.87 : x
  2. Step 2: Convert to fraction form
    46,990.63/70,498.96 = 21,697.87/x
  3. Step 3: Cross multiply
    46,990.63x = 70,498.96 × 21,697.87
  4. Step 4: Simplify right side
    46,990.63x = 1,529,677,303.09
  5. Step 5: Solve for x
    x = 1,529,677,303.09/46,990.63
  6. Step 6: Final answer
    x = 32,552.82

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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.