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Finding the Fourth Proportional to 14,918.10, 20,588.04 and 9,873.51

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Solution

The fourth proportional to 14,918.10, 20,588.04 and 9,873.51 is: 13,626.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.10 : 20,588.04 = 9,873.51 : x
  2. Step 2: Convert to fraction form
    14,918.10/20,588.04 = 9,873.51/x
  3. Step 3: Cross multiply
    14,918.10x = 20,588.04 × 9,873.51
  4. Step 4: Simplify right side
    14,918.10x = 203,276,218.82
  5. Step 5: Solve for x
    x = 203,276,218.82/14,918.10
  6. Step 6: Final answer
    x = 13,626.15

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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.