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Finding the Fourth Proportional to 9,953.10, 14,929.65 and 8,829.90

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Solution

The fourth proportional to 9,953.10, 14,929.65 and 8,829.90 is: 13,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,953.10 : 14,929.65 = 8,829.90 : x
  2. Step 2: Convert to fraction form
    9,953.10/14,929.65 = 8,829.90/x
  3. Step 3: Cross multiply
    9,953.10x = 14,929.65 × 8,829.90
  4. Step 4: Simplify right side
    9,953.10x = 131,827,316.54
  5. Step 5: Solve for x
    x = 131,827,316.54/9,953.10
  6. Step 6: Final answer
    x = 13,244.85

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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.