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Finding the Fourth Proportional to 58,898.88, 88,345.44 and 21,960

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Solution

The fourth proportional to 58,898.88, 88,345.44 and 21,960 is: 32,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,898.88 : 88,345.44 = 21,960 : x
  2. Step 2: Convert to fraction form
    58,898.88/88,345.44 = 21,960/x
  3. Step 3: Cross multiply
    58,898.88x = 88,345.44 × 21,960
  4. Step 4: Simplify right side
    58,898.88x = 1,940,065,862.40
  5. Step 5: Solve for x
    x = 1,940,065,862.40/58,898.88
  6. Step 6: Final answer
    x = 32,938.93

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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.