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Finding the Fourth Proportional to 8,798.61, 12,141.45 and 4,819.08

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Solution

The fourth proportional to 8,798.61, 12,141.45 and 4,819.08 is: 6,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.61 : 12,141.45 = 4,819.08 : x
  2. Step 2: Convert to fraction form
    8,798.61/12,141.45 = 4,819.08/x
  3. Step 3: Cross multiply
    8,798.61x = 12,141.45 × 4,819.08
  4. Step 4: Simplify right side
    8,798.61x = 58,510,618.87
  5. Step 5: Solve for x
    x = 58,510,618.87/8,798.61
  6. Step 6: Final answer
    x = 6,649.98

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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.