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Finding the Fourth Proportional to 66,308.65, 91,507.86 and 36,095.93

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Solution

The fourth proportional to 66,308.65, 91,507.86 and 36,095.93 is: 49,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308.65 : 91,507.86 = 36,095.93 : x
  2. Step 2: Convert to fraction form
    66,308.65/91,507.86 = 36,095.93/x
  3. Step 3: Cross multiply
    66,308.65x = 91,507.86 × 36,095.93
  4. Step 4: Simplify right side
    66,308.65x = 3,303,061,128.53
  5. Step 5: Solve for x
    x = 3,303,061,128.53/66,308.65
  6. Step 6: Final answer
    x = 49,813.43

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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.