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Finding the Fourth Proportional to 35,442.40, 53,165.60 and 13,261.60

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Solution

The fourth proportional to 35,442.40, 53,165.60 and 13,261.60 is: 19,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,442.40 : 53,165.60 = 13,261.60 : x
  2. Step 2: Convert to fraction form
    35,442.40/53,165.60 = 13,261.60/x
  3. Step 3: Cross multiply
    35,442.40x = 53,165.60 × 13,261.60
  4. Step 4: Simplify right side
    35,442.40x = 705,060,920.96
  5. Step 5: Solve for x
    x = 705,060,920.96/35,442.40
  6. Step 6: Final answer
    x = 19,893.15

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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.