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Finding the Fourth Proportional to 58,985.87, 81,402.54 and 33,491.40

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Solution

The fourth proportional to 58,985.87, 81,402.54 and 33,491.40 is: 46,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,985.87 : 81,402.54 = 33,491.40 : x
  2. Step 2: Convert to fraction form
    58,985.87/81,402.54 = 33,491.40/x
  3. Step 3: Cross multiply
    58,985.87x = 81,402.54 × 33,491.40
  4. Step 4: Simplify right side
    58,985.87x = 2,726,285,028.16
  5. Step 5: Solve for x
    x = 2,726,285,028.16/58,985.87
  6. Step 6: Final answer
    x = 46,219.29

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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.