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Finding the Fourth Proportional to 7,871.56, 10,860.30 and 4,468.01

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Solution

The fourth proportional to 7,871.56, 10,860.30 and 4,468.01 is: 6,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.56 : 10,860.30 = 4,468.01 : x
  2. Step 2: Convert to fraction form
    7,871.56/10,860.30 = 4,468.01/x
  3. Step 3: Cross multiply
    7,871.56x = 10,860.30 × 4,468.01
  4. Step 4: Simplify right side
    7,871.56x = 48,523,852.36
  5. Step 5: Solve for x
    x = 48,523,852.36/7,871.56
  6. Step 6: Final answer
    x = 6,164.45

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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.