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Finding the Fourth Proportional to 19,598.71, 27,057.44 and 12,903.80

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Solution

The fourth proportional to 19,598.71, 27,057.44 and 12,903.80 is: 17,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,598.71 : 27,057.44 = 12,903.80 : x
  2. Step 2: Convert to fraction form
    19,598.71/27,057.44 = 12,903.80/x
  3. Step 3: Cross multiply
    19,598.71x = 27,057.44 × 12,903.80
  4. Step 4: Simplify right side
    19,598.71x = 349,143,792.71
  5. Step 5: Solve for x
    x = 349,143,792.71/19,598.71
  6. Step 6: Final answer
    x = 17,814.63

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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.