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Finding the Fourth Proportional to 10,959.48, 16,423.59 and 8,482.68

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Solution

The fourth proportional to 10,959.48, 16,423.59 and 8,482.68 is: 12,711.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.48 : 16,423.59 = 8,482.68 : x
  2. Step 2: Convert to fraction form
    10,959.48/16,423.59 = 8,482.68/x
  3. Step 3: Cross multiply
    10,959.48x = 16,423.59 × 8,482.68
  4. Step 4: Simplify right side
    10,959.48x = 139,316,058.42
  5. Step 5: Solve for x
    x = 139,316,058.42/10,959.48
  6. Step 6: Final answer
    x = 12,711.92

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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.