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Finding the Fourth Proportional to 66,439.69, 91,724.08 and 46,051.38

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Solution

The fourth proportional to 66,439.69, 91,724.08 and 46,051.38 is: 63,576.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439.69 : 91,724.08 = 46,051.38 : x
  2. Step 2: Convert to fraction form
    66,439.69/91,724.08 = 46,051.38/x
  3. Step 3: Cross multiply
    66,439.69x = 91,724.08 × 46,051.38
  4. Step 4: Simplify right side
    66,439.69x = 4,224,020,463.23
  5. Step 5: Solve for x
    x = 4,224,020,463.23/66,439.69
  6. Step 6: Final answer
    x = 63,576.77

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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.