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Finding the Fourth Proportional to 66,292.69, 91,482.15 and 36,077.36

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Solution

The fourth proportional to 66,292.69, 91,482.15 and 36,077.36 is: 49,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,292.69 : 91,482.15 = 36,077.36 : x
  2. Step 2: Convert to fraction form
    66,292.69/91,482.15 = 36,077.36/x
  3. Step 3: Cross multiply
    66,292.69x = 91,482.15 × 36,077.36
  4. Step 4: Simplify right side
    66,292.69x = 3,300,434,001.71
  5. Step 5: Solve for x
    x = 3,300,434,001.71/66,292.69
  6. Step 6: Final answer
    x = 49,785.79

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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.