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Finding the Fourth Proportional to 60,671.19, 91,006.79 and 18,551.28

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Solution

The fourth proportional to 60,671.19, 91,006.79 and 18,551.28 is: 27,826.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,671.19 : 91,006.79 = 18,551.28 : x
  2. Step 2: Convert to fraction form
    60,671.19/91,006.79 = 18,551.28/x
  3. Step 3: Cross multiply
    60,671.19x = 91,006.79 × 18,551.28
  4. Step 4: Simplify right side
    60,671.19x = 1,688,291,988.16
  5. Step 5: Solve for x
    x = 1,688,291,988.16/60,671.19
  6. Step 6: Final answer
    x = 27,826.91

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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.