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Finding the Fourth Proportional to 55,654.80, 76,807.76 and 34,446.40

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Solution

The fourth proportional to 55,654.80, 76,807.76 and 34,446.40 is: 47,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,654.80 : 76,807.76 = 34,446.40 : x
  2. Step 2: Convert to fraction form
    55,654.80/76,807.76 = 34,446.40/x
  3. Step 3: Cross multiply
    55,654.80x = 76,807.76 × 34,446.40
  4. Step 4: Simplify right side
    55,654.80x = 2,645,750,824.06
  5. Step 5: Solve for x
    x = 2,645,750,824.06/55,654.80
  6. Step 6: Final answer
    x = 47,538.59

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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.