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Finding the Fourth Proportional to 35,881.60, 53,800.80 and 18,385.60

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Solution

The fourth proportional to 35,881.60, 53,800.80 and 18,385.60 is: 27,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,881.60 : 53,800.80 = 18,385.60 : x
  2. Step 2: Convert to fraction form
    35,881.60/53,800.80 = 18,385.60/x
  3. Step 3: Cross multiply
    35,881.60x = 53,800.80 × 18,385.60
  4. Step 4: Simplify right side
    35,881.60x = 989,159,988.48
  5. Step 5: Solve for x
    x = 989,159,988.48/35,881.60
  6. Step 6: Final answer
    x = 27,567.33

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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.