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Finding the Fourth Proportional to 55,147.84, 82,688.88 and 37,400.32

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Solution

The fourth proportional to 55,147.84, 82,688.88 and 37,400.32 is: 56,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,147.84 : 82,688.88 = 37,400.32 : x
  2. Step 2: Convert to fraction form
    55,147.84/82,688.88 = 37,400.32/x
  3. Step 3: Cross multiply
    55,147.84x = 82,688.88 × 37,400.32
  4. Step 4: Simplify right side
    55,147.84x = 3,092,590,572.44
  5. Step 5: Solve for x
    x = 3,092,590,572.44/55,147.84
  6. Step 6: Final answer
    x = 56,078.18

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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.