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Finding the Fourth Proportional to 74,790.98, 112,185.60 and 21,484.26

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Solution

The fourth proportional to 74,790.98, 112,185.60 and 21,484.26 is: 32,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,790.98 : 112,185.60 = 21,484.26 : x
  2. Step 2: Convert to fraction form
    74,790.98/112,185.60 = 21,484.26/x
  3. Step 3: Cross multiply
    74,790.98x = 112,185.60 × 21,484.26
  4. Step 4: Simplify right side
    74,790.98x = 2,410,225,079.08
  5. Step 5: Solve for x
    x = 2,410,225,079.08/74,790.98
  6. Step 6: Final answer
    x = 32,226.15

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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.