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Finding the Fourth Proportional to 13,774.95, 19,008.95 and 9,055.89

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Solution

The fourth proportional to 13,774.95, 19,008.95 and 9,055.89 is: 12,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.95 : 19,008.95 = 9,055.89 : x
  2. Step 2: Convert to fraction form
    13,774.95/19,008.95 = 9,055.89/x
  3. Step 3: Cross multiply
    13,774.95x = 19,008.95 × 9,055.89
  4. Step 4: Simplify right side
    13,774.95x = 172,142,914.94
  5. Step 5: Solve for x
    x = 172,142,914.94/13,774.95
  6. Step 6: Final answer
    x = 12,496.81

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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.