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Finding the Fourth Proportional to 56,698.92, 85,049.10 and 19,762.92

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Solution

The fourth proportional to 56,698.92, 85,049.10 and 19,762.92 is: 29,644.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,698.92 : 85,049.10 = 19,762.92 : x
  2. Step 2: Convert to fraction form
    56,698.92/85,049.10 = 19,762.92/x
  3. Step 3: Cross multiply
    56,698.92x = 85,049.10 × 19,762.92
  4. Step 4: Simplify right side
    56,698.92x = 1,680,818,559.37
  5. Step 5: Solve for x
    x = 1,680,818,559.37/56,698.92
  6. Step 6: Final answer
    x = 29,644.63

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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.