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Finding the Fourth Proportional to 7,489,611.60, 11,234,417.40 and 6,355,870.80

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Solution

The fourth proportional to 7,489,611.60, 11,234,417.40 and 6,355,870.80 is: 9,533,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489,611.60 : 11,234,417.40 = 6,355,870.80 : x
  2. Step 2: Convert to fraction form
    7,489,611.60/11,234,417.40 = 6,355,870.80/x
  3. Step 3: Cross multiply
    7,489,611.60x = 11,234,417.40 × 6,355,870.80
  4. Step 4: Simplify right side
    7,489,611.60x = 71,404,505,507,671.92
  5. Step 5: Solve for x
    x = 71,404,505,507,671.92/7,489,611.60
  6. Step 6: Final answer
    x = 9,533,806.20

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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.