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Finding the Fourth Proportional to 24,719.91, 34,113.30 and 13,389.15

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Solution

The fourth proportional to 24,719.91, 34,113.30 and 13,389.15 is: 18,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,719.91 : 34,113.30 = 13,389.15 : x
  2. Step 2: Convert to fraction form
    24,719.91/34,113.30 = 13,389.15/x
  3. Step 3: Cross multiply
    24,719.91x = 34,113.30 × 13,389.15
  4. Step 4: Simplify right side
    24,719.91x = 456,748,090.70
  5. Step 5: Solve for x
    x = 456,748,090.70/24,719.91
  6. Step 6: Final answer
    x = 18,476.93

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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.