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Finding the Fourth Proportional to 47,651.60, 65,764.04 and 26,430.80

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Solution

The fourth proportional to 47,651.60, 65,764.04 and 26,430.80 is: 36,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,651.60 : 65,764.04 = 26,430.80 : x
  2. Step 2: Convert to fraction form
    47,651.60/65,764.04 = 26,430.80/x
  3. Step 3: Cross multiply
    47,651.60x = 65,764.04 × 26,430.80
  4. Step 4: Simplify right side
    47,651.60x = 1,738,196,188.43
  5. Step 5: Solve for x
    x = 1,738,196,188.43/47,651.60
  6. Step 6: Final answer
    x = 36,477.18

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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.