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Finding the Fourth Proportional to 35,862.60, 53,769.60 and 18,998.40

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Solution

The fourth proportional to 35,862.60, 53,769.60 and 18,998.40 is: 28,484.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,862.60 : 53,769.60 = 18,998.40 : x
  2. Step 2: Convert to fraction form
    35,862.60/53,769.60 = 18,998.40/x
  3. Step 3: Cross multiply
    35,862.60x = 53,769.60 × 18,998.40
  4. Step 4: Simplify right side
    35,862.60x = 1,021,536,368.64
  5. Step 5: Solve for x
    x = 1,021,536,368.64/35,862.60
  6. Step 6: Final answer
    x = 28,484.73

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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.