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Finding the Fourth Proportional to 58,661.84, 88,005.20 and 19,216

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Solution

The fourth proportional to 58,661.84, 88,005.20 and 19,216 is: 28,828.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,661.84 : 88,005.20 = 19,216 : x
  2. Step 2: Convert to fraction form
    58,661.84/88,005.20 = 19,216/x
  3. Step 3: Cross multiply
    58,661.84x = 88,005.20 × 19,216
  4. Step 4: Simplify right side
    58,661.84x = 1,691,107,923.20
  5. Step 5: Solve for x
    x = 1,691,107,923.20/58,661.84
  6. Step 6: Final answer
    x = 28,828.08

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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.