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Finding the Fourth Proportional to 61,651.86, 85,070.43 and 37,440.23

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Solution

The fourth proportional to 61,651.86, 85,070.43 and 37,440.23 is: 51,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,651.86 : 85,070.43 = 37,440.23 : x
  2. Step 2: Convert to fraction form
    61,651.86/85,070.43 = 37,440.23/x
  3. Step 3: Cross multiply
    61,651.86x = 85,070.43 × 37,440.23
  4. Step 4: Simplify right side
    61,651.86x = 3,185,056,465.40
  5. Step 5: Solve for x
    x = 3,185,056,465.40/61,651.86
  6. Step 6: Final answer
    x = 51,661.97

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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.