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Finding the Fourth Proportional to 8,484.51, 12,729.12 and 3,552.98

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Solution

The fourth proportional to 8,484.51, 12,729.12 and 3,552.98 is: 5,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.51 : 12,729.12 = 3,552.98 : x
  2. Step 2: Convert to fraction form
    8,484.51/12,729.12 = 3,552.98/x
  3. Step 3: Cross multiply
    8,484.51x = 12,729.12 × 3,552.98
  4. Step 4: Simplify right side
    8,484.51x = 45,226,245.13
  5. Step 5: Solve for x
    x = 45,226,245.13/8,484.51
  6. Step 6: Final answer
    x = 5,330.45

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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.