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Finding the Fourth Proportional to 7,829.54, 10,805.02 and 4,471.64

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Solution

The fourth proportional to 7,829.54, 10,805.02 and 4,471.64 is: 6,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.54 : 10,805.02 = 4,471.64 : x
  2. Step 2: Convert to fraction form
    7,829.54/10,805.02 = 4,471.64/x
  3. Step 3: Cross multiply
    7,829.54x = 10,805.02 × 4,471.64
  4. Step 4: Simplify right side
    7,829.54x = 48,316,159.63
  5. Step 5: Solve for x
    x = 48,316,159.63/7,829.54
  6. Step 6: Final answer
    x = 6,171.01

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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.