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Finding the Fourth Proportional to 14,828.67, 20,461.95 and 8,859.51

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Solution

The fourth proportional to 14,828.67, 20,461.95 and 8,859.51 is: 12,225.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,828.67 : 20,461.95 = 8,859.51 : x
  2. Step 2: Convert to fraction form
    14,828.67/20,461.95 = 8,859.51/x
  3. Step 3: Cross multiply
    14,828.67x = 20,461.95 × 8,859.51
  4. Step 4: Simplify right side
    14,828.67x = 181,282,850.64
  5. Step 5: Solve for x
    x = 181,282,850.64/14,828.67
  6. Step 6: Final answer
    x = 12,225.16

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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.