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Finding the Fourth Proportional to 14,368.47, 19,825.50 and 8,398.98

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Solution

The fourth proportional to 14,368.47, 19,825.50 and 8,398.98 is: 11,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,368.47 : 19,825.50 = 8,398.98 : x
  2. Step 2: Convert to fraction form
    14,368.47/19,825.50 = 8,398.98/x
  3. Step 3: Cross multiply
    14,368.47x = 19,825.50 × 8,398.98
  4. Step 4: Simplify right side
    14,368.47x = 166,513,977.99
  5. Step 5: Solve for x
    x = 166,513,977.99/14,368.47
  6. Step 6: Final answer
    x = 11,588.85

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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.