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Finding the Fourth Proportional to 51,625.60, 77,438.40 and 43,752.40

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Solution

The fourth proportional to 51,625.60, 77,438.40 and 43,752.40 is: 65,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,625.60 : 77,438.40 = 43,752.40 : x
  2. Step 2: Convert to fraction form
    51,625.60/77,438.40 = 43,752.40/x
  3. Step 3: Cross multiply
    51,625.60x = 77,438.40 × 43,752.40
  4. Step 4: Simplify right side
    51,625.60x = 3,388,115,852.16
  5. Step 5: Solve for x
    x = 3,388,115,852.16/51,625.60
  6. Step 6: Final answer
    x = 65,628.60

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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.