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Finding the Fourth Proportional to 57,513.84, 85,754.66 and 56,464.08

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Solution

The fourth proportional to 57,513.84, 85,754.66 and 56,464.08 is: 84,189.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,513.84 : 85,754.66 = 56,464.08 : x
  2. Step 2: Convert to fraction form
    57,513.84/85,754.66 = 56,464.08/x
  3. Step 3: Cross multiply
    57,513.84x = 85,754.66 × 56,464.08
  4. Step 4: Simplify right side
    57,513.84x = 4,842,057,982.61
  5. Step 5: Solve for x
    x = 4,842,057,982.61/57,513.84
  6. Step 6: Final answer
    x = 84,189.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.