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Finding the Fourth Proportional to 56,347.98, 84,521.97 and 45,805.44

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Solution

The fourth proportional to 56,347.98, 84,521.97 and 45,805.44 is: 68,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,347.98 : 84,521.97 = 45,805.44 : x
  2. Step 2: Convert to fraction form
    56,347.98/84,521.97 = 45,805.44/x
  3. Step 3: Cross multiply
    56,347.98x = 84,521.97 × 45,805.44
  4. Step 4: Simplify right side
    56,347.98x = 3,871,566,025.52
  5. Step 5: Solve for x
    x = 3,871,566,025.52/56,347.98
  6. Step 6: Final answer
    x = 68,708.16

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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.