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Finding the Fourth Proportional to 46,992, 70,488 and 14,160

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Solution

The fourth proportional to 46,992, 70,488 and 14,160 is: 21,240

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,992 : 70,488 = 14,160 : x
  2. Step 2: Convert to fraction form
    46,992/70,488 = 14,160/x
  3. Step 3: Cross multiply
    46,992x = 70,488 × 14,160
  4. Step 4: Simplify right side
    46,992x = 998,110,080
  5. Step 5: Solve for x
    x = 998,110,080/46,992
  6. Step 6: Final answer
    x = 21,240

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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.