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Finding the Fourth Proportional to 66,280.65, 91,468.86 and 37,602.25

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Solution

The fourth proportional to 66,280.65, 91,468.86 and 37,602.25 is: 51,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,280.65 : 91,468.86 = 37,602.25 : x
  2. Step 2: Convert to fraction form
    66,280.65/91,468.86 = 37,602.25/x
  3. Step 3: Cross multiply
    66,280.65x = 91,468.86 × 37,602.25
  4. Step 4: Simplify right side
    66,280.65x = 3,439,434,483.59
  5. Step 5: Solve for x
    x = 3,439,434,483.59/66,280.65
  6. Step 6: Final answer
    x = 51,891.98

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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.