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Finding the Fourth Proportional to 14,859.32, 20,510.62 and 9,826.79

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Solution

The fourth proportional to 14,859.32, 20,510.62 and 9,826.79 is: 13,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,859.32 : 20,510.62 = 9,826.79 : x
  2. Step 2: Convert to fraction form
    14,859.32/20,510.62 = 9,826.79/x
  3. Step 3: Cross multiply
    14,859.32x = 20,510.62 × 9,826.79
  4. Step 4: Simplify right side
    14,859.32x = 201,553,428.39
  5. Step 5: Solve for x
    x = 201,553,428.39/14,859.32
  6. Step 6: Final answer
    x = 13,564.11

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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.