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Finding the Fourth Proportional to 7,320.48, 10,980.06 and 2,055.06

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Solution

The fourth proportional to 7,320.48, 10,980.06 and 2,055.06 is: 3,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.48 : 10,980.06 = 2,055.06 : x
  2. Step 2: Convert to fraction form
    7,320.48/10,980.06 = 2,055.06/x
  3. Step 3: Cross multiply
    7,320.48x = 10,980.06 × 2,055.06
  4. Step 4: Simplify right side
    7,320.48x = 22,564,682.10
  5. Step 5: Solve for x
    x = 22,564,682.10/7,320.48
  6. Step 6: Final answer
    x = 3,082.40

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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.