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Finding the Fourth Proportional to 61,684.48, 85,124.22 and 33,390.16

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Solution

The fourth proportional to 61,684.48, 85,124.22 and 33,390.16 is: 46,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,684.48 : 85,124.22 = 33,390.16 : x
  2. Step 2: Convert to fraction form
    61,684.48/85,124.22 = 33,390.16/x
  3. Step 3: Cross multiply
    61,684.48x = 85,124.22 × 33,390.16
  4. Step 4: Simplify right side
    61,684.48x = 2,842,311,325.68
  5. Step 5: Solve for x
    x = 2,842,311,325.68/61,684.48
  6. Step 6: Final answer
    x = 46,078.22

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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.