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Finding the Fourth Proportional to 58,883.90, 81,228.24 and 40,947.77

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Solution

The fourth proportional to 58,883.90, 81,228.24 and 40,947.77 is: 56,485.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,883.90 : 81,228.24 = 40,947.77 : x
  2. Step 2: Convert to fraction form
    58,883.90/81,228.24 = 40,947.77/x
  3. Step 3: Cross multiply
    58,883.90x = 81,228.24 × 40,947.77
  4. Step 4: Simplify right side
    58,883.90x = 3,326,115,289.02
  5. Step 5: Solve for x
    x = 3,326,115,289.02/58,883.90
  6. Step 6: Final answer
    x = 56,485.99

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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.