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Finding the Fourth Proportional to 58,923.88, 88,382.94 and 21,985

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Solution

The fourth proportional to 58,923.88, 88,382.94 and 21,985 is: 32,976.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,923.88 : 88,382.94 = 21,985 : x
  2. Step 2: Convert to fraction form
    58,923.88/88,382.94 = 21,985/x
  3. Step 3: Cross multiply
    58,923.88x = 88,382.94 × 21,985
  4. Step 4: Simplify right side
    58,923.88x = 1,943,098,935.90
  5. Step 5: Solve for x
    x = 1,943,098,935.90/58,923.88
  6. Step 6: Final answer
    x = 32,976.43

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1.5x scale

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.