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Finding the Fourth Proportional to 14,364.86, 21,549.72 and 7,347.92

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Solution

The fourth proportional to 14,364.86, 21,549.72 and 7,347.92 is: 11,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,364.86 : 21,549.72 = 7,347.92 : x
  2. Step 2: Convert to fraction form
    14,364.86/21,549.72 = 7,347.92/x
  3. Step 3: Cross multiply
    14,364.86x = 21,549.72 × 7,347.92
  4. Step 4: Simplify right side
    14,364.86x = 158,345,618.58
  5. Step 5: Solve for x
    x = 158,345,618.58/14,364.86
  6. Step 6: Final answer
    x = 11,023.12

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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.