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Finding the Fourth Proportional to 57,528.99, 85,889.97 and 48,674.07

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Solution

The fourth proportional to 57,528.99, 85,889.97 and 48,674.07 is: 72,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,528.99 : 85,889.97 = 48,674.07 : x
  2. Step 2: Convert to fraction form
    57,528.99/85,889.97 = 48,674.07/x
  3. Step 3: Cross multiply
    57,528.99x = 85,889.97 × 48,674.07
  4. Step 4: Simplify right side
    57,528.99x = 4,180,614,412.08
  5. Step 5: Solve for x
    x = 4,180,614,412.08/57,528.99
  6. Step 6: Final answer
    x = 72,669.70

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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.