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Finding the Fourth Proportional to 30,368.70, 45,553.05 and 17,246.70

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Solution

The fourth proportional to 30,368.70, 45,553.05 and 17,246.70 is: 25,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.70 : 45,553.05 = 17,246.70 : x
  2. Step 2: Convert to fraction form
    30,368.70/45,553.05 = 17,246.70/x
  3. Step 3: Cross multiply
    30,368.70x = 45,553.05 × 17,246.70
  4. Step 4: Simplify right side
    30,368.70x = 785,639,787.44
  5. Step 5: Solve for x
    x = 785,639,787.44/30,368.70
  6. Step 6: Final answer
    x = 25,870.05

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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.