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Finding the Fourth Proportional to 14,054.76, 19,403.64 and 8,756.64

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Solution

The fourth proportional to 14,054.76, 19,403.64 and 8,756.64 is: 12,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,054.76 : 19,403.64 = 8,756.64 : x
  2. Step 2: Convert to fraction form
    14,054.76/19,403.64 = 8,756.64/x
  3. Step 3: Cross multiply
    14,054.76x = 19,403.64 × 8,756.64
  4. Step 4: Simplify right side
    14,054.76x = 169,910,690.17
  5. Step 5: Solve for x
    x = 169,910,690.17/14,054.76
  6. Step 6: Final answer
    x = 12,089.19

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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.