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Finding the Fourth Proportional to 55,762.32, 76,956.60 and 31,893.60

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Solution

The fourth proportional to 55,762.32, 76,956.60 and 31,893.60 is: 44,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,762.32 : 76,956.60 = 31,893.60 : x
  2. Step 2: Convert to fraction form
    55,762.32/76,956.60 = 31,893.60/x
  3. Step 3: Cross multiply
    55,762.32x = 76,956.60 × 31,893.60
  4. Step 4: Simplify right side
    55,762.32x = 2,454,423,017.76
  5. Step 5: Solve for x
    x = 2,454,423,017.76/55,762.32
  6. Step 6: Final answer
    x = 44,015.80

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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.