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Finding the Fourth Proportional to 18,402.77, 25,396.17 and 10,445.51

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Solution

The fourth proportional to 18,402.77, 25,396.17 and 10,445.51 is: 14,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.77 : 25,396.17 = 10,445.51 : x
  2. Step 2: Convert to fraction form
    18,402.77/25,396.17 = 10,445.51/x
  3. Step 3: Cross multiply
    18,402.77x = 25,396.17 × 10,445.51
  4. Step 4: Simplify right side
    18,402.77x = 265,276,011.19
  5. Step 5: Solve for x
    x = 265,276,011.19/18,402.77
  6. Step 6: Final answer
    x = 14,415.00

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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.