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Finding the Fourth Proportional to 10,364.70, 15,547.05 and 7,059.90

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Solution

The fourth proportional to 10,364.70, 15,547.05 and 7,059.90 is: 10,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,364.70 : 15,547.05 = 7,059.90 : x
  2. Step 2: Convert to fraction form
    10,364.70/15,547.05 = 7,059.90/x
  3. Step 3: Cross multiply
    10,364.70x = 15,547.05 × 7,059.90
  4. Step 4: Simplify right side
    10,364.70x = 109,760,618.30
  5. Step 5: Solve for x
    x = 109,760,618.30/10,364.70
  6. Step 6: Final answer
    x = 10,589.85

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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.