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Finding the Fourth Proportional to 57,601.80, 86,402.70 and 56,435.40

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Solution

The fourth proportional to 57,601.80, 86,402.70 and 56,435.40 is: 84,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,601.80 : 86,402.70 = 56,435.40 : x
  2. Step 2: Convert to fraction form
    57,601.80/86,402.70 = 56,435.40/x
  3. Step 3: Cross multiply
    57,601.80x = 86,402.70 × 56,435.40
  4. Step 4: Simplify right side
    57,601.80x = 4,876,170,935.58
  5. Step 5: Solve for x
    x = 4,876,170,935.58/57,601.80
  6. Step 6: Final answer
    x = 84,653.10

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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.