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Finding the Fourth Proportional to 21,967.97, 30,317.96 and 12,537.95

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Solution

The fourth proportional to 21,967.97, 30,317.96 and 12,537.95 is: 17,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.97 : 30,317.96 = 12,537.95 : x
  2. Step 2: Convert to fraction form
    21,967.97/30,317.96 = 12,537.95/x
  3. Step 3: Cross multiply
    21,967.97x = 30,317.96 × 12,537.95
  4. Step 4: Simplify right side
    21,967.97x = 380,124,946.34
  5. Step 5: Solve for x
    x = 380,124,946.34/21,967.97
  6. Step 6: Final answer
    x = 17,303.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.