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Finding the Fourth Proportional to 19,502.57, 26,941.11 and 15,518.59

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Solution

The fourth proportional to 19,502.57, 26,941.11 and 15,518.59 is: 21,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,502.57 : 26,941.11 = 15,518.59 : x
  2. Step 2: Convert to fraction form
    19,502.57/26,941.11 = 15,518.59/x
  3. Step 3: Cross multiply
    19,502.57x = 26,941.11 × 15,518.59
  4. Step 4: Simplify right side
    19,502.57x = 418,087,914.69
  5. Step 5: Solve for x
    x = 418,087,914.69/19,502.57
  6. Step 6: Final answer
    x = 21,437.58

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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.