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Finding the Fourth Proportional to 61,887.51, 92,831.67 and 15,140.39

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Solution

The fourth proportional to 61,887.51, 92,831.67 and 15,140.39 is: 22,710.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,887.51 : 92,831.67 = 15,140.39 : x
  2. Step 2: Convert to fraction form
    61,887.51/92,831.67 = 15,140.39/x
  3. Step 3: Cross multiply
    61,887.51x = 92,831.67 × 15,140.39
  4. Step 4: Simplify right side
    61,887.51x = 1,405,507,223.99
  5. Step 5: Solve for x
    x = 1,405,507,223.99/61,887.51
  6. Step 6: Final answer
    x = 22,710.68

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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.