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Finding the Fourth Proportional to 58,751.86, 81,078.94 and 34,878.62

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Solution

The fourth proportional to 58,751.86, 81,078.94 and 34,878.62 is: 48,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,751.86 : 81,078.94 = 34,878.62 : x
  2. Step 2: Convert to fraction form
    58,751.86/81,078.94 = 34,878.62/x
  3. Step 3: Cross multiply
    58,751.86x = 81,078.94 × 34,878.62
  4. Step 4: Simplify right side
    58,751.86x = 2,827,921,538.26
  5. Step 5: Solve for x
    x = 2,827,921,538.26/58,751.86
  6. Step 6: Final answer
    x = 48,133.31

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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.