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Finding the Fourth Proportional to 42,886.99, 64,314.69 and 14,799.88

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Solution

The fourth proportional to 42,886.99, 64,314.69 and 14,799.88 is: 22,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,886.99 : 64,314.69 = 14,799.88 : x
  2. Step 2: Convert to fraction form
    42,886.99/64,314.69 = 14,799.88/x
  3. Step 3: Cross multiply
    42,886.99x = 64,314.69 × 14,799.88
  4. Step 4: Simplify right side
    42,886.99x = 951,849,694.24
  5. Step 5: Solve for x
    x = 951,849,694.24/42,886.99
  6. Step 6: Final answer
    x = 22,194.37

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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.