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Finding the Fourth Proportional to 7,870.44, 10,860.80 and 4,333

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Solution

The fourth proportional to 7,870.44, 10,860.80 and 4,333 is: 5,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.44 : 10,860.80 = 4,333 : x
  2. Step 2: Convert to fraction form
    7,870.44/10,860.80 = 4,333/x
  3. Step 3: Cross multiply
    7,870.44x = 10,860.80 × 4,333
  4. Step 4: Simplify right side
    7,870.44x = 47,059,846.40
  5. Step 5: Solve for x
    x = 47,059,846.40/7,870.44
  6. Step 6: Final answer
    x = 5,979.32

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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.