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Finding the Fourth Proportional to 19,490.96, 26,901.96 and 11,537.84

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Solution

The fourth proportional to 19,490.96, 26,901.96 and 11,537.84 is: 15,924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.96 : 26,901.96 = 11,537.84 : x
  2. Step 2: Convert to fraction form
    19,490.96/26,901.96 = 11,537.84/x
  3. Step 3: Cross multiply
    19,490.96x = 26,901.96 × 11,537.84
  4. Step 4: Simplify right side
    19,490.96x = 310,390,510.17
  5. Step 5: Solve for x
    x = 310,390,510.17/19,490.96
  6. Step 6: Final answer
    x = 15,924.84

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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.