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Finding the Fourth Proportional to 65,810.22, 90,818.13 and 37,135.98

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Solution

The fourth proportional to 65,810.22, 90,818.13 and 37,135.98 is: 51,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,810.22 : 90,818.13 = 37,135.98 : x
  2. Step 2: Convert to fraction form
    65,810.22/90,818.13 = 37,135.98/x
  3. Step 3: Cross multiply
    65,810.22x = 90,818.13 × 37,135.98
  4. Step 4: Simplify right side
    65,810.22x = 3,372,620,259.32
  5. Step 5: Solve for x
    x = 3,372,620,259.32/65,810.22
  6. Step 6: Final answer
    x = 51,247.67

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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.