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Finding the Fourth Proportional to 7,222.80, 9,955.80 and 6,056.40

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Solution

The fourth proportional to 7,222.80, 9,955.80 and 6,056.40 is: 8,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.80 : 9,955.80 = 6,056.40 : x
  2. Step 2: Convert to fraction form
    7,222.80/9,955.80 = 6,056.40/x
  3. Step 3: Cross multiply
    7,222.80x = 9,955.80 × 6,056.40
  4. Step 4: Simplify right side
    7,222.80x = 60,296,307.12
  5. Step 5: Solve for x
    x = 60,296,307.12/7,222.80
  6. Step 6: Final answer
    x = 8,348.05

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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.