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Finding the Fourth Proportional to 15,068.30, 20,793.68 and 8,354.02

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Solution

The fourth proportional to 15,068.30, 20,793.68 and 8,354.02 is: 11,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.30 : 20,793.68 = 8,354.02 : x
  2. Step 2: Convert to fraction form
    15,068.30/20,793.68 = 8,354.02/x
  3. Step 3: Cross multiply
    15,068.30x = 20,793.68 × 8,354.02
  4. Step 4: Simplify right side
    15,068.30x = 173,710,818.59
  5. Step 5: Solve for x
    x = 173,710,818.59/15,068.30
  6. Step 6: Final answer
    x = 11,528.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.