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Finding the Fourth Proportional to 19,347.95, 29,021.94 and 15,476.96

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Solution

The fourth proportional to 19,347.95, 29,021.94 and 15,476.96 is: 23,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.95 : 29,021.94 = 15,476.96 : x
  2. Step 2: Convert to fraction form
    19,347.95/29,021.94 = 15,476.96/x
  3. Step 3: Cross multiply
    19,347.95x = 29,021.94 × 15,476.96
  4. Step 4: Simplify right side
    19,347.95x = 449,171,477.06
  5. Step 5: Solve for x
    x = 449,171,477.06/19,347.95
  6. Step 6: Final answer
    x = 23,215.45

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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.