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Finding the Fourth Proportional to 19,597.17, 27,025.47 and 12,888.48

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Solution

The fourth proportional to 19,597.17, 27,025.47 and 12,888.48 is: 17,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,597.17 : 27,025.47 = 12,888.48 : x
  2. Step 2: Convert to fraction form
    19,597.17/27,025.47 = 12,888.48/x
  3. Step 3: Cross multiply
    19,597.17x = 27,025.47 × 12,888.48
  4. Step 4: Simplify right side
    19,597.17x = 348,317,229.59
  5. Step 5: Solve for x
    x = 348,317,229.59/19,597.17
  6. Step 6: Final answer
    x = 17,773.85

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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.