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Finding the Fourth Proportional to 43,276.90, 64,915.35 and 35,986.90

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Solution

The fourth proportional to 43,276.90, 64,915.35 and 35,986.90 is: 53,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,276.90 : 64,915.35 = 35,986.90 : x
  2. Step 2: Convert to fraction form
    43,276.90/64,915.35 = 35,986.90/x
  3. Step 3: Cross multiply
    43,276.90x = 64,915.35 × 35,986.90
  4. Step 4: Simplify right side
    43,276.90x = 2,336,102,208.92
  5. Step 5: Solve for x
    x = 2,336,102,208.92/43,276.90
  6. Step 6: Final answer
    x = 53,980.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.