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Finding the Fourth Proportional to 77,292.60, 115,955.52 and 23,983.50

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Solution

The fourth proportional to 77,292.60, 115,955.52 and 23,983.50 is: 35,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,292.60 : 115,955.52 = 23,983.50 : x
  2. Step 2: Convert to fraction form
    77,292.60/115,955.52 = 23,983.50/x
  3. Step 3: Cross multiply
    77,292.60x = 115,955.52 × 23,983.50
  4. Step 4: Simplify right side
    77,292.60x = 2,781,019,213.92
  5. Step 5: Solve for x
    x = 2,781,019,213.92/77,292.60
  6. Step 6: Final answer
    x = 35,980.41

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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.