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Finding the Fourth Proportional to 19,320.50, 26,662.29 and 10,937

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Solution

The fourth proportional to 19,320.50, 26,662.29 and 10,937 is: 15,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.50 : 26,662.29 = 10,937 : x
  2. Step 2: Convert to fraction form
    19,320.50/26,662.29 = 10,937/x
  3. Step 3: Cross multiply
    19,320.50x = 26,662.29 × 10,937
  4. Step 4: Simplify right side
    19,320.50x = 291,605,465.73
  5. Step 5: Solve for x
    x = 291,605,465.73/19,320.50
  6. Step 6: Final answer
    x = 15,093.06

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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.