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Finding the Fourth Proportional to 42,998.48, 64,485.44 and 16,697.60

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Solution

The fourth proportional to 42,998.48, 64,485.44 and 16,697.60 is: 25,041.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,998.48 : 64,485.44 = 16,697.60 : x
  2. Step 2: Convert to fraction form
    42,998.48/64,485.44 = 16,697.60/x
  3. Step 3: Cross multiply
    42,998.48x = 64,485.44 × 16,697.60
  4. Step 4: Simplify right side
    42,998.48x = 1,076,752,082.94
  5. Step 5: Solve for x
    x = 1,076,752,082.94/42,998.48
  6. Step 6: Final answer
    x = 25,041.63

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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.