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Finding the Fourth Proportional to 30,842.59, 46,261.50 and 8,655.07

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Solution

The fourth proportional to 30,842.59, 46,261.50 and 8,655.07 is: 12,981.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,842.59 : 46,261.50 = 8,655.07 : x
  2. Step 2: Convert to fraction form
    30,842.59/46,261.50 = 8,655.07/x
  3. Step 3: Cross multiply
    30,842.59x = 46,261.50 × 8,655.07
  4. Step 4: Simplify right side
    30,842.59x = 400,396,520.81
  5. Step 5: Solve for x
    x = 400,396,520.81/30,842.59
  6. Step 6: Final answer
    x = 12,981.94

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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.