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Finding the Fourth Proportional to 66,322.32, 91,509.04 and 37,635.60

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Solution

The fourth proportional to 66,322.32, 91,509.04 and 37,635.60 is: 51,928.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,322.32 : 91,509.04 = 37,635.60 : x
  2. Step 2: Convert to fraction form
    66,322.32/91,509.04 = 37,635.60/x
  3. Step 3: Cross multiply
    66,322.32x = 91,509.04 × 37,635.60
  4. Step 4: Simplify right side
    66,322.32x = 3,443,997,625.82
  5. Step 5: Solve for x
    x = 3,443,997,625.82/66,322.32
  6. Step 6: Final answer
    x = 51,928.18

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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.