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Finding the Fourth Proportional to 21,592.77, 29,798.08 and 12,519.89

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Solution

The fourth proportional to 21,592.77, 29,798.08 and 12,519.89 is: 17,277.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,592.77 : 29,798.08 = 12,519.89 : x
  2. Step 2: Convert to fraction form
    21,592.77/29,798.08 = 12,519.89/x
  3. Step 3: Cross multiply
    21,592.77x = 29,798.08 × 12,519.89
  4. Step 4: Simplify right side
    21,592.77x = 373,068,683.81
  5. Step 5: Solve for x
    x = 373,068,683.81/21,592.77
  6. Step 6: Final answer
    x = 17,277.48

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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.