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Finding the Fourth Proportional to 66,056.60, 99,084.90 and 31,064.60

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Solution

The fourth proportional to 66,056.60, 99,084.90 and 31,064.60 is: 46,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,056.60 : 99,084.90 = 31,064.60 : x
  2. Step 2: Convert to fraction form
    66,056.60/99,084.90 = 31,064.60/x
  3. Step 3: Cross multiply
    66,056.60x = 99,084.90 × 31,064.60
  4. Step 4: Simplify right side
    66,056.60x = 3,078,032,784.54
  5. Step 5: Solve for x
    x = 3,078,032,784.54/66,056.60
  6. Step 6: Final answer
    x = 46,596.90

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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.