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Finding the Fourth Proportional to 7,303.60, 10,955.40 and 7,206.40

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Solution

The fourth proportional to 7,303.60, 10,955.40 and 7,206.40 is: 10,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,303.60 : 10,955.40 = 7,206.40 : x
  2. Step 2: Convert to fraction form
    7,303.60/10,955.40 = 7,206.40/x
  3. Step 3: Cross multiply
    7,303.60x = 10,955.40 × 7,206.40
  4. Step 4: Simplify right side
    7,303.60x = 78,948,994.56
  5. Step 5: Solve for x
    x = 78,948,994.56/7,303.60
  6. Step 6: Final answer
    x = 10,809.60

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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.