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Finding the Fourth Proportional to 19,368.59, 26,728.95 and 10,754.54

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Solution

The fourth proportional to 19,368.59, 26,728.95 and 10,754.54 is: 14,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.59 : 26,728.95 = 10,754.54 : x
  2. Step 2: Convert to fraction form
    19,368.59/26,728.95 = 10,754.54/x
  3. Step 3: Cross multiply
    19,368.59x = 26,728.95 × 10,754.54
  4. Step 4: Simplify right side
    19,368.59x = 287,457,568.85
  5. Step 5: Solve for x
    x = 287,457,568.85/19,368.59
  6. Step 6: Final answer
    x = 14,841.43

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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.