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Finding the Fourth Proportional to 66,432.96, 91,686.24 and 46,276.80

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Solution

The fourth proportional to 66,432.96, 91,686.24 and 46,276.80 is: 63,868.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432.96 : 91,686.24 = 46,276.80 : x
  2. Step 2: Convert to fraction form
    66,432.96/91,686.24 = 46,276.80/x
  3. Step 3: Cross multiply
    66,432.96x = 91,686.24 × 46,276.80
  4. Step 4: Simplify right side
    66,432.96x = 4,242,945,791.23
  5. Step 5: Solve for x
    x = 4,242,945,791.23/66,432.96
  6. Step 6: Final answer
    x = 63,868.08

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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.