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Finding the Fourth Proportional to 66,090.58, 91,202.54 and 35,875.26

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Solution

The fourth proportional to 66,090.58, 91,202.54 and 35,875.26 is: 49,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090.58 : 91,202.54 = 35,875.26 : x
  2. Step 2: Convert to fraction form
    66,090.58/91,202.54 = 35,875.26/x
  3. Step 3: Cross multiply
    66,090.58x = 91,202.54 × 35,875.26
  4. Step 4: Simplify right side
    66,090.58x = 3,271,914,835.16
  5. Step 5: Solve for x
    x = 3,271,914,835.16/66,090.58
  6. Step 6: Final answer
    x = 49,506.52

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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.