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Finding the Fourth Proportional to 34,145.60, 47,687.20 and 34,145.60

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Solution

The fourth proportional to 34,145.60, 47,687.20 and 34,145.60 is: 47,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,145.60 : 47,687.20 = 34,145.60 : x
  2. Step 2: Convert to fraction form
    34,145.60/47,687.20 = 34,145.60/x
  3. Step 3: Cross multiply
    34,145.60x = 47,687.20 × 34,145.60
  4. Step 4: Simplify right side
    34,145.60x = 1,628,308,056.32
  5. Step 5: Solve for x
    x = 1,628,308,056.32/34,145.60
  6. Step 6: Final answer
    x = 47,687.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.