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Finding the Fourth Proportional to 66,880.96, 92,280.54 and 45,373.64

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Solution

The fourth proportional to 66,880.96, 92,280.54 and 45,373.64 is: 62,605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880.96 : 92,280.54 = 45,373.64 : x
  2. Step 2: Convert to fraction form
    66,880.96/92,280.54 = 45,373.64/x
  3. Step 3: Cross multiply
    66,880.96x = 92,280.54 × 45,373.64
  4. Step 4: Simplify right side
    66,880.96x = 4,187,104,000.97
  5. Step 5: Solve for x
    x = 4,187,104,000.97/66,880.96
  6. Step 6: Final answer
    x = 62,605.32

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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.