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Finding the Fourth Proportional to 66,656.46, 92,009.07 and 38,373.42

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Solution

The fourth proportional to 66,656.46, 92,009.07 and 38,373.42 is: 52,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,656.46 : 92,009.07 = 38,373.42 : x
  2. Step 2: Convert to fraction form
    66,656.46/92,009.07 = 38,373.42/x
  3. Step 3: Cross multiply
    66,656.46x = 92,009.07 × 38,373.42
  4. Step 4: Simplify right side
    66,656.46x = 3,530,702,686.92
  5. Step 5: Solve for x
    x = 3,530,702,686.92/66,656.46
  6. Step 6: Final answer
    x = 52,968.65

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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.