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Finding the Fourth Proportional to 58,685.63, 88,035.26 and 21,263.31

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Solution

The fourth proportional to 58,685.63, 88,035.26 and 21,263.31 is: 31,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,685.63 : 88,035.26 = 21,263.31 : x
  2. Step 2: Convert to fraction form
    58,685.63/88,035.26 = 21,263.31/x
  3. Step 3: Cross multiply
    58,685.63x = 88,035.26 × 21,263.31
  4. Step 4: Simplify right side
    58,685.63x = 1,871,920,917.99
  5. Step 5: Solve for x
    x = 1,871,920,917.99/58,685.63
  6. Step 6: Final answer
    x = 31,897.44

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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.