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Finding the Fourth Proportional to 4,798.58, 6,623.64 and 2,809.76

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Solution

The fourth proportional to 4,798.58, 6,623.64 and 2,809.76 is: 3,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,798.58 : 6,623.64 = 2,809.76 : x
  2. Step 2: Convert to fraction form
    4,798.58/6,623.64 = 2,809.76/x
  3. Step 3: Cross multiply
    4,798.58x = 6,623.64 × 2,809.76
  4. Step 4: Simplify right side
    4,798.58x = 18,610,805.61
  5. Step 5: Solve for x
    x = 18,610,805.61/4,798.58
  6. Step 6: Final answer
    x = 3,878.40

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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.