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Finding the Fourth Proportional to 7,604.76, 11,407.80 and 2,925.90

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Solution

The fourth proportional to 7,604.76, 11,407.80 and 2,925.90 is: 4,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,604.76 : 11,407.80 = 2,925.90 : x
  2. Step 2: Convert to fraction form
    7,604.76/11,407.80 = 2,925.90/x
  3. Step 3: Cross multiply
    7,604.76x = 11,407.80 × 2,925.90
  4. Step 4: Simplify right side
    7,604.76x = 33,378,082.02
  5. Step 5: Solve for x
    x = 33,378,082.02/7,604.76
  6. Step 6: Final answer
    x = 4,389.10

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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.