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Finding the Fourth Proportional to 66,808.79, 92,205.30 and 40,962.77

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Solution

The fourth proportional to 66,808.79, 92,205.30 and 40,962.77 is: 56,534.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.79 : 92,205.30 = 40,962.77 : x
  2. Step 2: Convert to fraction form
    66,808.79/92,205.30 = 40,962.77/x
  3. Step 3: Cross multiply
    66,808.79x = 92,205.30 × 40,962.77
  4. Step 4: Simplify right side
    66,808.79x = 3,776,984,318.97
  5. Step 5: Solve for x
    x = 3,776,984,318.97/66,808.79
  6. Step 6: Final answer
    x = 56,534.24

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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.