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Finding the Fourth Proportional to 14,659.84, 20,210.88 and 10,460.80

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Solution

The fourth proportional to 14,659.84, 20,210.88 and 10,460.80 is: 14,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,659.84 : 20,210.88 = 10,460.80 : x
  2. Step 2: Convert to fraction form
    14,659.84/20,210.88 = 10,460.80/x
  3. Step 3: Cross multiply
    14,659.84x = 20,210.88 × 10,460.80
  4. Step 4: Simplify right side
    14,659.84x = 211,421,973.50
  5. Step 5: Solve for x
    x = 211,421,973.50/14,659.84
  6. Step 6: Final answer
    x = 14,421.85

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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.