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Finding the Fourth Proportional to 58,821.39, 88,243.02 and 19,381.28

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Solution

The fourth proportional to 58,821.39, 88,243.02 and 19,381.28 is: 29,075.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,821.39 : 88,243.02 = 19,381.28 : x
  2. Step 2: Convert to fraction form
    58,821.39/88,243.02 = 19,381.28/x
  3. Step 3: Cross multiply
    58,821.39x = 88,243.02 × 19,381.28
  4. Step 4: Simplify right side
    58,821.39x = 1,710,262,237.45
  5. Step 5: Solve for x
    x = 1,710,262,237.45/58,821.39
  6. Step 6: Final answer
    x = 29,075.52

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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.