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Finding the Fourth Proportional to 14,394.51, 21,563.01 and 8,858.63

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Solution

The fourth proportional to 14,394.51, 21,563.01 and 8,858.63 is: 13,270.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,394.51 : 21,563.01 = 8,858.63 : x
  2. Step 2: Convert to fraction form
    14,394.51/21,563.01 = 8,858.63/x
  3. Step 3: Cross multiply
    14,394.51x = 21,563.01 × 8,858.63
  4. Step 4: Simplify right side
    14,394.51x = 191,018,781.18
  5. Step 5: Solve for x
    x = 191,018,781.18/14,394.51
  6. Step 6: Final answer
    x = 13,270.25

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1.5x scale

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.