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Finding the Fourth Proportional to 16,291.32, 24,419.88 and 6,929.16

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Solution

The fourth proportional to 16,291.32, 24,419.88 and 6,929.16 is: 10,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,291.32 : 24,419.88 = 6,929.16 : x
  2. Step 2: Convert to fraction form
    16,291.32/24,419.88 = 6,929.16/x
  3. Step 3: Cross multiply
    16,291.32x = 24,419.88 × 6,929.16
  4. Step 4: Simplify right side
    16,291.32x = 169,209,255.70
  5. Step 5: Solve for x
    x = 169,209,255.70/16,291.32
  6. Step 6: Final answer
    x = 10,386.47

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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.