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Finding the Fourth Proportional to 66,854.64, 92,261.96 and 38,178.98

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Solution

The fourth proportional to 66,854.64, 92,261.96 and 38,178.98 is: 52,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,854.64 : 92,261.96 = 38,178.98 : x
  2. Step 2: Convert to fraction form
    66,854.64/92,261.96 = 38,178.98/x
  3. Step 3: Cross multiply
    66,854.64x = 92,261.96 × 38,178.98
  4. Step 4: Simplify right side
    66,854.64x = 3,522,467,525.60
  5. Step 5: Solve for x
    x = 3,522,467,525.60/66,854.64
  6. Step 6: Final answer
    x = 52,688.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.