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Finding the Fourth Proportional to 5,356.99, 7,392.40 and 2,966.80

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Solution

The fourth proportional to 5,356.99, 7,392.40 and 2,966.80 is: 4,094.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.99 : 7,392.40 = 2,966.80 : x
  2. Step 2: Convert to fraction form
    5,356.99/7,392.40 = 2,966.80/x
  3. Step 3: Cross multiply
    5,356.99x = 7,392.40 × 2,966.80
  4. Step 4: Simplify right side
    5,356.99x = 21,931,793.59
  5. Step 5: Solve for x
    x = 21,931,793.59/5,356.99
  6. Step 6: Final answer
    x = 4,094.05

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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.