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Finding the Fourth Proportional to 55,482.74, 76,560.68 and 31,607.99

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Solution

The fourth proportional to 55,482.74, 76,560.68 and 31,607.99 is: 43,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,482.74 : 76,560.68 = 31,607.99 : x
  2. Step 2: Convert to fraction form
    55,482.74/76,560.68 = 31,607.99/x
  3. Step 3: Cross multiply
    55,482.74x = 76,560.68 × 31,607.99
  4. Step 4: Simplify right side
    55,482.74x = 2,419,929,207.83
  5. Step 5: Solve for x
    x = 2,419,929,207.83/55,482.74
  6. Step 6: Final answer
    x = 43,615.89

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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.