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Finding the Fourth Proportional to 14,403.76, 19,884 and 8,433.52

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Solution

The fourth proportional to 14,403.76, 19,884 and 8,433.52 is: 11,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.76 : 19,884 = 8,433.52 : x
  2. Step 2: Convert to fraction form
    14,403.76/19,884 = 8,433.52/x
  3. Step 3: Cross multiply
    14,403.76x = 19,884 × 8,433.52
  4. Step 4: Simplify right side
    14,403.76x = 167,692,111.68
  5. Step 5: Solve for x
    x = 167,692,111.68/14,403.76
  6. Step 6: Final answer
    x = 11,642.25

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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.