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Finding the Fourth Proportional to 66,098.16, 91,215.54 and 35,883.50

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Solution

The fourth proportional to 66,098.16, 91,215.54 and 35,883.50 is: 49,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,098.16 : 91,215.54 = 35,883.50 : x
  2. Step 2: Convert to fraction form
    66,098.16/91,215.54 = 35,883.50/x
  3. Step 3: Cross multiply
    66,098.16x = 91,215.54 × 35,883.50
  4. Step 4: Simplify right side
    66,098.16x = 3,273,132,373.51
  5. Step 5: Solve for x
    x = 3,273,132,373.51/66,098.16
  6. Step 6: Final answer
    x = 49,519.27

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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.