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Finding the Fourth Proportional to 14,353.13, 21,509.65 and 6,955.63

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Solution

The fourth proportional to 14,353.13, 21,509.65 and 6,955.63 is: 10,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.13 : 21,509.65 = 6,955.63 : x
  2. Step 2: Convert to fraction form
    14,353.13/21,509.65 = 6,955.63/x
  3. Step 3: Cross multiply
    14,353.13x = 21,509.65 × 6,955.63
  4. Step 4: Simplify right side
    14,353.13x = 149,613,166.83
  5. Step 5: Solve for x
    x = 149,613,166.83/14,353.13
  6. Step 6: Final answer
    x = 10,423.73

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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.