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Finding the Fourth Proportional to 58,692.72, 81,042.48 and 54,214.80

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Solution

The fourth proportional to 58,692.72, 81,042.48 and 54,214.80 is: 74,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,692.72 : 81,042.48 = 54,214.80 : x
  2. Step 2: Convert to fraction form
    58,692.72/81,042.48 = 54,214.80/x
  3. Step 3: Cross multiply
    58,692.72x = 81,042.48 × 54,214.80
  4. Step 4: Simplify right side
    58,692.72x = 4,393,701,844.70
  5. Step 5: Solve for x
    x = 4,393,701,844.70/58,692.72
  6. Step 6: Final answer
    x = 74,859.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.