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Finding the Fourth Proportional to 66,999.60, 93,682.80 and 66,999.60

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Solution

The fourth proportional to 66,999.60, 93,682.80 and 66,999.60 is: 93,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,999.60 : 93,682.80 = 66,999.60 : x
  2. Step 2: Convert to fraction form
    66,999.60/93,682.80 = 66,999.60/x
  3. Step 3: Cross multiply
    66,999.60x = 93,682.80 × 66,999.60
  4. Step 4: Simplify right side
    66,999.60x = 6,276,710,126.88
  5. Step 5: Solve for x
    x = 6,276,710,126.88/66,999.60
  6. Step 6: Final answer
    x = 93,682.80

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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.