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Finding the Fourth Proportional to 14,919.16, 20,552.88 and 10,434.52

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Solution

The fourth proportional to 14,919.16, 20,552.88 and 10,434.52 is: 14,374.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.16 : 20,552.88 = 10,434.52 : x
  2. Step 2: Convert to fraction form
    14,919.16/20,552.88 = 10,434.52/x
  3. Step 3: Cross multiply
    14,919.16x = 20,552.88 × 10,434.52
  4. Step 4: Simplify right side
    14,919.16x = 214,459,437.42
  5. Step 5: Solve for x
    x = 214,459,437.42/14,919.16
  6. Step 6: Final answer
    x = 14,374.77

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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.