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Finding the Fourth Proportional to 12,798.60, 19,199.74 and 4,034.22

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Solution

The fourth proportional to 12,798.60, 19,199.74 and 4,034.22 is: 6,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.60 : 19,199.74 = 4,034.22 : x
  2. Step 2: Convert to fraction form
    12,798.60/19,199.74 = 4,034.22/x
  3. Step 3: Cross multiply
    12,798.60x = 19,199.74 × 4,034.22
  4. Step 4: Simplify right side
    12,798.60x = 77,455,975.10
  5. Step 5: Solve for x
    x = 77,455,975.10/12,798.60
  6. Step 6: Final answer
    x = 6,051.91

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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.