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Finding the Fourth Proportional to 30,882.72, 46,280.88 and 16,842.72

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Solution

The fourth proportional to 30,882.72, 46,280.88 and 16,842.72 is: 25,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,882.72 : 46,280.88 = 16,842.72 : x
  2. Step 2: Convert to fraction form
    30,882.72/46,280.88 = 16,842.72/x
  3. Step 3: Cross multiply
    30,882.72x = 46,280.88 × 16,842.72
  4. Step 4: Simplify right side
    30,882.72x = 779,495,903.19
  5. Step 5: Solve for x
    x = 779,495,903.19/30,882.72
  6. Step 6: Final answer
    x = 25,240.52

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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.