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Finding the Fourth Proportional to 47,611.51, 65,703.90 and 26,390.32

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Solution

The fourth proportional to 47,611.51, 65,703.90 and 26,390.32 is: 36,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,611.51 : 65,703.90 = 26,390.32 : x
  2. Step 2: Convert to fraction form
    47,611.51/65,703.90 = 26,390.32/x
  3. Step 3: Cross multiply
    47,611.51x = 65,703.90 × 26,390.32
  4. Step 4: Simplify right side
    47,611.51x = 1,733,946,946.25
  5. Step 5: Solve for x
    x = 1,733,946,946.25/47,611.51
  6. Step 6: Final answer
    x = 36,418.65

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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.