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Finding the Fourth Proportional to 57,098.37, 85,653.29 and 19,653.49

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Solution

The fourth proportional to 57,098.37, 85,653.29 and 19,653.49 is: 29,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,098.37 : 85,653.29 = 19,653.49 : x
  2. Step 2: Convert to fraction form
    57,098.37/85,653.29 = 19,653.49/x
  3. Step 3: Cross multiply
    57,098.37x = 85,653.29 × 19,653.49
  4. Step 4: Simplify right side
    57,098.37x = 1,683,385,766.08
  5. Step 5: Solve for x
    x = 1,683,385,766.08/57,098.37
  6. Step 6: Final answer
    x = 29,482.20

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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.