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Finding the Fourth Proportional to 6,443.51, 8,885.13 and 4,048.74

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Solution

The fourth proportional to 6,443.51, 8,885.13 and 4,048.74 is: 5,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.51 : 8,885.13 = 4,048.74 : x
  2. Step 2: Convert to fraction form
    6,443.51/8,885.13 = 4,048.74/x
  3. Step 3: Cross multiply
    6,443.51x = 8,885.13 × 4,048.74
  4. Step 4: Simplify right side
    6,443.51x = 35,973,581.24
  5. Step 5: Solve for x
    x = 35,973,581.24/6,443.51
  6. Step 6: Final answer
    x = 5,582.92

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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.