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Finding the Fourth Proportional to 12,948.84, 19,423.08 and 3,714.84

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Solution

The fourth proportional to 12,948.84, 19,423.08 and 3,714.84 is: 5,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.84 : 19,423.08 = 3,714.84 : x
  2. Step 2: Convert to fraction form
    12,948.84/19,423.08 = 3,714.84/x
  3. Step 3: Cross multiply
    12,948.84x = 19,423.08 × 3,714.84
  4. Step 4: Simplify right side
    12,948.84x = 72,153,634.51
  5. Step 5: Solve for x
    x = 72,153,634.51/12,948.84
  6. Step 6: Final answer
    x = 5,572.21

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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.