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Finding the Fourth Proportional to 7,966.76, 10,990.84 and 5,444.80

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Solution

The fourth proportional to 7,966.76, 10,990.84 and 5,444.80 is: 7,511.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.76 : 10,990.84 = 5,444.80 : x
  2. Step 2: Convert to fraction form
    7,966.76/10,990.84 = 5,444.80/x
  3. Step 3: Cross multiply
    7,966.76x = 10,990.84 × 5,444.80
  4. Step 4: Simplify right side
    7,966.76x = 59,842,925.63
  5. Step 5: Solve for x
    x = 59,842,925.63/7,966.76
  6. Step 6: Final answer
    x = 7,511.58

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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.