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Finding the Fourth Proportional to 56,512.73, 77,980.93 and 33,539.00

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Solution

The fourth proportional to 56,512.73, 77,980.93 and 33,539.00 is: 46,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,512.73 : 77,980.93 = 33,539.00 : x
  2. Step 2: Convert to fraction form
    56,512.73/77,980.93 = 33,539.00/x
  3. Step 3: Cross multiply
    56,512.73x = 77,980.93 × 33,539.00
  4. Step 4: Simplify right side
    56,512.73x = 2,615,401,937.52
  5. Step 5: Solve for x
    x = 2,615,401,937.52/56,512.73
  6. Step 6: Final answer
    x = 46,279.87

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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.