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Finding the Fourth Proportional to 14,869.18, 20,518.84 and 8,897.32

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Solution

The fourth proportional to 14,869.18, 20,518.84 and 8,897.32 is: 12,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.18 : 20,518.84 = 8,897.32 : x
  2. Step 2: Convert to fraction form
    14,869.18/20,518.84 = 8,897.32/x
  3. Step 3: Cross multiply
    14,869.18x = 20,518.84 × 8,897.32
  4. Step 4: Simplify right side
    14,869.18x = 182,562,685.51
  5. Step 5: Solve for x
    x = 182,562,685.51/14,869.18
  6. Step 6: Final answer
    x = 12,277.93

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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.