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Finding the Fourth Proportional to 14,101.78, 21,153.06 and 4,106.13

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Solution

The fourth proportional to 14,101.78, 21,153.06 and 4,106.13 is: 6,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.78 : 21,153.06 = 4,106.13 : x
  2. Step 2: Convert to fraction form
    14,101.78/21,153.06 = 4,106.13/x
  3. Step 3: Cross multiply
    14,101.78x = 21,153.06 × 4,106.13
  4. Step 4: Simplify right side
    14,101.78x = 86,857,123.39
  5. Step 5: Solve for x
    x = 86,857,123.39/14,101.78
  6. Step 6: Final answer
    x = 6,159.30

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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.