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Finding the Fourth Proportional to 66,813.60, 92,203.68 and 36,598.32

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Solution

The fourth proportional to 66,813.60, 92,203.68 and 36,598.32 is: 50,506.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,813.60 : 92,203.68 = 36,598.32 : x
  2. Step 2: Convert to fraction form
    66,813.60/92,203.68 = 36,598.32/x
  3. Step 3: Cross multiply
    66,813.60x = 92,203.68 × 36,598.32
  4. Step 4: Simplify right side
    66,813.60x = 3,374,499,785.82
  5. Step 5: Solve for x
    x = 3,374,499,785.82/66,813.60
  6. Step 6: Final answer
    x = 50,506.18

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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.