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Finding the Fourth Proportional to 46,980.61, 70,486.28 and 17,400.61

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Solution

The fourth proportional to 46,980.61, 70,486.28 and 17,400.61 is: 26,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,980.61 : 70,486.28 = 17,400.61 : x
  2. Step 2: Convert to fraction form
    46,980.61/70,486.28 = 17,400.61/x
  3. Step 3: Cross multiply
    46,980.61x = 70,486.28 × 17,400.61
  4. Step 4: Simplify right side
    46,980.61x = 1,226,504,181.63
  5. Step 5: Solve for x
    x = 1,226,504,181.63/46,980.61
  6. Step 6: Final answer
    x = 26,106.60

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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.