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Finding the Fourth Proportional to 65,929.32, 90,980.04 and 37,633.80

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Solution

The fourth proportional to 65,929.32, 90,980.04 and 37,633.80 is: 51,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,929.32 : 90,980.04 = 37,633.80 : x
  2. Step 2: Convert to fraction form
    65,929.32/90,980.04 = 37,633.80/x
  3. Step 3: Cross multiply
    65,929.32x = 90,980.04 × 37,633.80
  4. Step 4: Simplify right side
    65,929.32x = 3,423,924,629.35
  5. Step 5: Solve for x
    x = 3,423,924,629.35/65,929.32
  6. Step 6: Final answer
    x = 51,933.26

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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.