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Finding the Fourth Proportional to 60,533.82, 90,801.18 and 21,090.87

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Solution

The fourth proportional to 60,533.82, 90,801.18 and 21,090.87 is: 31,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,533.82 : 90,801.18 = 21,090.87 : x
  2. Step 2: Convert to fraction form
    60,533.82/90,801.18 = 21,090.87/x
  3. Step 3: Cross multiply
    60,533.82x = 90,801.18 × 21,090.87
  4. Step 4: Simplify right side
    60,533.82x = 1,915,075,883.23
  5. Step 5: Solve for x
    x = 1,915,075,883.23/60,533.82
  6. Step 6: Final answer
    x = 31,636.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.