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Finding the Fourth Proportional to 13,298.70, 19,948.05 and 4,064.70

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Solution

The fourth proportional to 13,298.70, 19,948.05 and 4,064.70 is: 6,097.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.70 : 19,948.05 = 4,064.70 : x
  2. Step 2: Convert to fraction form
    13,298.70/19,948.05 = 4,064.70/x
  3. Step 3: Cross multiply
    13,298.70x = 19,948.05 × 4,064.70
  4. Step 4: Simplify right side
    13,298.70x = 81,082,838.84
  5. Step 5: Solve for x
    x = 81,082,838.84/13,298.70
  6. Step 6: Final answer
    x = 6,097.05

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Similar ratio
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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.