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Finding the Fourth Proportional to 14,419.59, 19,897.95 and 9,393.42

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Solution

The fourth proportional to 14,419.59, 19,897.95 and 9,393.42 is: 12,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.59 : 19,897.95 = 9,393.42 : x
  2. Step 2: Convert to fraction form
    14,419.59/19,897.95 = 9,393.42/x
  3. Step 3: Cross multiply
    14,419.59x = 19,897.95 × 9,393.42
  4. Step 4: Simplify right side
    14,419.59x = 186,909,801.49
  5. Step 5: Solve for x
    x = 186,909,801.49/14,419.59
  6. Step 6: Final answer
    x = 12,962.21

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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.