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Finding the Fourth Proportional to 7,335.84, 10,990.96 and 6,111.12

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Solution

The fourth proportional to 7,335.84, 10,990.96 and 6,111.12 is: 9,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.84 : 10,990.96 = 6,111.12 : x
  2. Step 2: Convert to fraction form
    7,335.84/10,990.96 = 6,111.12/x
  3. Step 3: Cross multiply
    7,335.84x = 10,990.96 × 6,111.12
  4. Step 4: Simplify right side
    7,335.84x = 67,167,075.48
  5. Step 5: Solve for x
    x = 67,167,075.48/7,335.84
  6. Step 6: Final answer
    x = 9,156.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.