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Finding the Fourth Proportional to 34,646.60, 51,969.90 and 12,460.70

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Solution

The fourth proportional to 34,646.60, 51,969.90 and 12,460.70 is: 18,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,646.60 : 51,969.90 = 12,460.70 : x
  2. Step 2: Convert to fraction form
    34,646.60/51,969.90 = 12,460.70/x
  3. Step 3: Cross multiply
    34,646.60x = 51,969.90 × 12,460.70
  4. Step 4: Simplify right side
    34,646.60x = 647,581,332.93
  5. Step 5: Solve for x
    x = 647,581,332.93/34,646.60
  6. Step 6: Final answer
    x = 18,691.05

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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.