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Finding the Fourth Proportional to 14,065.95, 21,095.78 and 4,203.95

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Solution

The fourth proportional to 14,065.95, 21,095.78 and 4,203.95 is: 6,304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.95 : 21,095.78 = 4,203.95 : x
  2. Step 2: Convert to fraction form
    14,065.95/21,095.78 = 4,203.95/x
  3. Step 3: Cross multiply
    14,065.95x = 21,095.78 × 4,203.95
  4. Step 4: Simplify right side
    14,065.95x = 88,685,513.30
  5. Step 5: Solve for x
    x = 88,685,513.30/14,065.95
  6. Step 6: Final answer
    x = 6,304.98

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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.