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Finding the Fourth Proportional to 19,561.51, 26,994.89 and 10,609.01

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Solution

The fourth proportional to 19,561.51, 26,994.89 and 10,609.01 is: 14,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.51 : 26,994.89 = 10,609.01 : x
  2. Step 2: Convert to fraction form
    19,561.51/26,994.89 = 10,609.01/x
  3. Step 3: Cross multiply
    19,561.51x = 26,994.89 × 10,609.01
  4. Step 4: Simplify right side
    19,561.51x = 286,389,050.74
  5. Step 5: Solve for x
    x = 286,389,050.74/19,561.51
  6. Step 6: Final answer
    x = 14,640.44

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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.