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Finding the Fourth Proportional to 7,329.70, 11,006.70 and 4,875.40

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Solution

The fourth proportional to 7,329.70, 11,006.70 and 4,875.40 is: 7,321.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.70 : 11,006.70 = 4,875.40 : x
  2. Step 2: Convert to fraction form
    7,329.70/11,006.70 = 4,875.40/x
  3. Step 3: Cross multiply
    7,329.70x = 11,006.70 × 4,875.40
  4. Step 4: Simplify right side
    7,329.70x = 53,662,065.18
  5. Step 5: Solve for x
    x = 53,662,065.18/7,329.70
  6. Step 6: Final answer
    x = 7,321.18

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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.