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Finding the Fourth Proportional to 17,377.51, 23,980.18 and 9,721.19

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Solution

The fourth proportional to 17,377.51, 23,980.18 and 9,721.19 is: 13,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,377.51 : 23,980.18 = 9,721.19 : x
  2. Step 2: Convert to fraction form
    17,377.51/23,980.18 = 9,721.19/x
  3. Step 3: Cross multiply
    17,377.51x = 23,980.18 × 9,721.19
  4. Step 4: Simplify right side
    17,377.51x = 233,115,886.01
  5. Step 5: Solve for x
    x = 233,115,886.01/17,377.51
  6. Step 6: Final answer
    x = 13,414.80

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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.