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Finding the Fourth Proportional to 58,786.69, 81,148.88 and 40,892.08

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Solution

The fourth proportional to 58,786.69, 81,148.88 and 40,892.08 is: 56,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,786.69 : 81,148.88 = 40,892.08 : x
  2. Step 2: Convert to fraction form
    58,786.69/81,148.88 = 40,892.08/x
  3. Step 3: Cross multiply
    58,786.69x = 81,148.88 × 40,892.08
  4. Step 4: Simplify right side
    58,786.69x = 3,318,346,392.23
  5. Step 5: Solve for x
    x = 3,318,346,392.23/58,786.69
  6. Step 6: Final answer
    x = 56,447.24

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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.