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Finding the Fourth Proportional to 10,560.70, 15,913.69 and 8,752.51

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Solution

The fourth proportional to 10,560.70, 15,913.69 and 8,752.51 is: 13,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,560.70 : 15,913.69 = 8,752.51 : x
  2. Step 2: Convert to fraction form
    10,560.70/15,913.69 = 8,752.51/x
  3. Step 3: Cross multiply
    10,560.70x = 15,913.69 × 8,752.51
  4. Step 4: Simplify right side
    10,560.70x = 139,284,730.86
  5. Step 5: Solve for x
    x = 139,284,730.86/10,560.70
  6. Step 6: Final answer
    x = 13,188.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.