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Finding the Fourth Proportional to 14,423.54, 19,904.74 and 8,459.51

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Solution

The fourth proportional to 14,423.54, 19,904.74 and 8,459.51 is: 11,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,423.54 : 19,904.74 = 8,459.51 : x
  2. Step 2: Convert to fraction form
    14,423.54/19,904.74 = 8,459.51/x
  3. Step 3: Cross multiply
    14,423.54x = 19,904.74 × 8,459.51
  4. Step 4: Simplify right side
    14,423.54x = 168,384,347.08
  5. Step 5: Solve for x
    x = 168,384,347.08/14,423.54
  6. Step 6: Final answer
    x = 11,674.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.