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Finding the Fourth Proportional to 19,762.99, 27,275.54 and 11,268.18

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Solution

The fourth proportional to 19,762.99, 27,275.54 and 11,268.18 is: 15,551.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,762.99 : 27,275.54 = 11,268.18 : x
  2. Step 2: Convert to fraction form
    19,762.99/27,275.54 = 11,268.18/x
  3. Step 3: Cross multiply
    19,762.99x = 27,275.54 × 11,268.18
  4. Step 4: Simplify right side
    19,762.99x = 307,345,637.98
  5. Step 5: Solve for x
    x = 307,345,637.98/19,762.99
  6. Step 6: Final answer
    x = 15,551.58

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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.