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Finding the Fourth Proportional to 35,542.96, 53,346.68 and 18,916.99

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Solution

The fourth proportional to 35,542.96, 53,346.68 and 18,916.99 is: 28,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,542.96 : 53,346.68 = 18,916.99 : x
  2. Step 2: Convert to fraction form
    35,542.96/53,346.68 = 18,916.99/x
  3. Step 3: Cross multiply
    35,542.96x = 53,346.68 × 18,916.99
  4. Step 4: Simplify right side
    35,542.96x = 1,009,158,612.09
  5. Step 5: Solve for x
    x = 1,009,158,612.09/35,542.96
  6. Step 6: Final answer
    x = 28,392.64

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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.