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Finding the Fourth Proportional to 43,552.40, 65,405.22 and 42,929.12

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Solution

The fourth proportional to 43,552.40, 65,405.22 and 42,929.12 is: 64,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,552.40 : 65,405.22 = 42,929.12 : x
  2. Step 2: Convert to fraction form
    43,552.40/65,405.22 = 42,929.12/x
  3. Step 3: Cross multiply
    43,552.40x = 65,405.22 × 42,929.12
  4. Step 4: Simplify right side
    43,552.40x = 2,807,788,538.01
  5. Step 5: Solve for x
    x = 2,807,788,538.01/43,552.40
  6. Step 6: Final answer
    x = 64,469.20

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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.