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Finding the Fourth Proportional to 55,653.84, 76,904.13 and 40,520.22

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Solution

The fourth proportional to 55,653.84, 76,904.13 and 40,520.22 is: 55,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,653.84 : 76,904.13 = 40,520.22 : x
  2. Step 2: Convert to fraction form
    55,653.84/76,904.13 = 40,520.22/x
  3. Step 3: Cross multiply
    55,653.84x = 76,904.13 × 40,520.22
  4. Step 4: Simplify right side
    55,653.84x = 3,116,172,266.51
  5. Step 5: Solve for x
    x = 3,116,172,266.51/55,653.84
  6. Step 6: Final answer
    x = 55,992.04

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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.