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Finding the Fourth Proportional to 55,124.68, 76,071.52 and 29,974.16

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Solution

The fourth proportional to 55,124.68, 76,071.52 and 29,974.16 is: 41,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,124.68 : 76,071.52 = 29,974.16 : x
  2. Step 2: Convert to fraction form
    55,124.68/76,071.52 = 29,974.16/x
  3. Step 3: Cross multiply
    55,124.68x = 76,071.52 × 29,974.16
  4. Step 4: Simplify right side
    55,124.68x = 2,280,179,911.92
  5. Step 5: Solve for x
    x = 2,280,179,911.92/55,124.68
  6. Step 6: Final answer
    x = 41,364.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.