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Finding the Fourth Proportional to 66,275.59, 91,457.59 and 36,061.04

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Solution

The fourth proportional to 66,275.59, 91,457.59 and 36,061.04 is: 49,762.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,275.59 : 91,457.59 = 36,061.04 : x
  2. Step 2: Convert to fraction form
    66,275.59/91,457.59 = 36,061.04/x
  3. Step 3: Cross multiply
    66,275.59x = 91,457.59 × 36,061.04
  4. Step 4: Simplify right side
    66,275.59x = 3,298,055,811.29
  5. Step 5: Solve for x
    x = 3,298,055,811.29/66,275.59
  6. Step 6: Final answer
    x = 49,762.75

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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.