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Finding the Fourth Proportional to 58,309.40, 87,464.10 and 46,645.40

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Solution

The fourth proportional to 58,309.40, 87,464.10 and 46,645.40 is: 69,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,309.40 : 87,464.10 = 46,645.40 : x
  2. Step 2: Convert to fraction form
    58,309.40/87,464.10 = 46,645.40/x
  3. Step 3: Cross multiply
    58,309.40x = 87,464.10 × 46,645.40
  4. Step 4: Simplify right side
    58,309.40x = 4,079,797,930.14
  5. Step 5: Solve for x
    x = 4,079,797,930.14/58,309.40
  6. Step 6: Final answer
    x = 69,968.10

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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.