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Finding the Fourth Proportional to 19,199.84, 26,267.90 and 19,116.81

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Solution

The fourth proportional to 19,199.84, 26,267.90 and 19,116.81 is: 26,154.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.84 : 26,267.90 = 19,116.81 : x
  2. Step 2: Convert to fraction form
    19,199.84/26,267.90 = 19,116.81/x
  3. Step 3: Cross multiply
    19,199.84x = 26,267.90 × 19,116.81
  4. Step 4: Simplify right side
    19,199.84x = 502,158,357.81
  5. Step 5: Solve for x
    x = 502,158,357.81/19,199.84
  6. Step 6: Final answer
    x = 26,154.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.