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Finding the Fourth Proportional to 14,985.44, 22,478.16 and 8,417.76

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Solution

The fourth proportional to 14,985.44, 22,478.16 and 8,417.76 is: 12,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.44 : 22,478.16 = 8,417.76 : x
  2. Step 2: Convert to fraction form
    14,985.44/22,478.16 = 8,417.76/x
  3. Step 3: Cross multiply
    14,985.44x = 22,478.16 × 8,417.76
  4. Step 4: Simplify right side
    14,985.44x = 189,215,756.12
  5. Step 5: Solve for x
    x = 189,215,756.12/14,985.44
  6. Step 6: Final answer
    x = 12,626.64

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Double scale
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Similar ratio
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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.