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Finding the Fourth Proportional to 46,605.40, 69,908.10 and 45,309.40

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Solution

The fourth proportional to 46,605.40, 69,908.10 and 45,309.40 is: 67,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,605.40 : 69,908.10 = 45,309.40 : x
  2. Step 2: Convert to fraction form
    46,605.40/69,908.10 = 45,309.40/x
  3. Step 3: Cross multiply
    46,605.40x = 69,908.10 × 45,309.40
  4. Step 4: Simplify right side
    46,605.40x = 3,167,494,066.14
  5. Step 5: Solve for x
    x = 3,167,494,066.14/46,605.40
  6. Step 6: Final answer
    x = 67,964.10

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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.