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Finding the Fourth Proportional to 42,646.60, 63,945.90 and 16,352.20

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Solution

The fourth proportional to 42,646.60, 63,945.90 and 16,352.20 is: 24,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,646.60 : 63,945.90 = 16,352.20 : x
  2. Step 2: Convert to fraction form
    42,646.60/63,945.90 = 16,352.20/x
  3. Step 3: Cross multiply
    42,646.60x = 63,945.90 × 16,352.20
  4. Step 4: Simplify right side
    42,646.60x = 1,045,656,145.98
  5. Step 5: Solve for x
    x = 1,045,656,145.98/42,646.60
  6. Step 6: Final answer
    x = 24,519.10

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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.