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Finding the Fourth Proportional to 6,482.79, 8,946.10 and 3,964.93

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Solution

The fourth proportional to 6,482.79, 8,946.10 and 3,964.93 is: 5,471.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,482.79 : 8,946.10 = 3,964.93 : x
  2. Step 2: Convert to fraction form
    6,482.79/8,946.10 = 3,964.93/x
  3. Step 3: Cross multiply
    6,482.79x = 8,946.10 × 3,964.93
  4. Step 4: Simplify right side
    6,482.79x = 35,470,595.72
  5. Step 5: Solve for x
    x = 35,470,595.72/6,482.79
  6. Step 6: Final answer
    x = 5,471.50

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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.