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Finding the Fourth Proportional to 10,533.76, 15,800.16 and 3,959.44

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Solution

The fourth proportional to 10,533.76, 15,800.16 and 3,959.44 is: 5,938.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533.76 : 15,800.16 = 3,959.44 : x
  2. Step 2: Convert to fraction form
    10,533.76/15,800.16 = 3,959.44/x
  3. Step 3: Cross multiply
    10,533.76x = 15,800.16 × 3,959.44
  4. Step 4: Simplify right side
    10,533.76x = 62,559,785.51
  5. Step 5: Solve for x
    x = 62,559,785.51/10,533.76
  6. Step 6: Final answer
    x = 5,938.98

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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.