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Finding the Fourth Proportional to 66,228.53, 91,395.95 and 36,013.77

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Solution

The fourth proportional to 66,228.53, 91,395.95 and 36,013.77 is: 49,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,228.53 : 91,395.95 = 36,013.77 : x
  2. Step 2: Convert to fraction form
    66,228.53/91,395.95 = 36,013.77/x
  3. Step 3: Cross multiply
    66,228.53x = 91,395.95 × 36,013.77
  4. Step 4: Simplify right side
    66,228.53x = 3,291,512,542.16
  5. Step 5: Solve for x
    x = 3,291,512,542.16/66,228.53
  6. Step 6: Final answer
    x = 49,699.32

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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.