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Finding the Fourth Proportional to 19,887.51, 29,831.13 and 6,036.51

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Solution

The fourth proportional to 19,887.51, 29,831.13 and 6,036.51 is: 9,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.51 : 29,831.13 = 6,036.51 : x
  2. Step 2: Convert to fraction form
    19,887.51/29,831.13 = 6,036.51/x
  3. Step 3: Cross multiply
    19,887.51x = 29,831.13 × 6,036.51
  4. Step 4: Simplify right side
    19,887.51x = 180,075,914.56
  5. Step 5: Solve for x
    x = 180,075,914.56/19,887.51
  6. Step 6: Final answer
    x = 9,054.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.