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Finding the Fourth Proportional to 19,395.66, 26,766.12 and 10,898.14

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Solution

The fourth proportional to 19,395.66, 26,766.12 and 10,898.14 is: 15,039.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,395.66 : 26,766.12 = 10,898.14 : x
  2. Step 2: Convert to fraction form
    19,395.66/26,766.12 = 10,898.14/x
  3. Step 3: Cross multiply
    19,395.66x = 26,766.12 × 10,898.14
  4. Step 4: Simplify right side
    19,395.66x = 291,700,923.02
  5. Step 5: Solve for x
    x = 291,700,923.02/19,395.66
  6. Step 6: Final answer
    x = 15,039.49

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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.