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Finding the Fourth Proportional to 14,412.48, 19,888.32 and 8,748.48

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Solution

The fourth proportional to 14,412.48, 19,888.32 and 8,748.48 is: 12,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.48 : 19,888.32 = 8,748.48 : x
  2. Step 2: Convert to fraction form
    14,412.48/19,888.32 = 8,748.48/x
  3. Step 3: Cross multiply
    14,412.48x = 19,888.32 × 8,748.48
  4. Step 4: Simplify right side
    14,412.48x = 173,992,569.75
  5. Step 5: Solve for x
    x = 173,992,569.75/14,412.48
  6. Step 6: Final answer
    x = 12,072.35

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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.