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Finding the Fourth Proportional to 13,065.79, 18,030.92 and 7,097.58

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Solution

The fourth proportional to 13,065.79, 18,030.92 and 7,097.58 is: 9,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.79 : 18,030.92 = 7,097.58 : x
  2. Step 2: Convert to fraction form
    13,065.79/18,030.92 = 7,097.58/x
  3. Step 3: Cross multiply
    13,065.79x = 18,030.92 × 7,097.58
  4. Step 4: Simplify right side
    13,065.79x = 127,975,897.17
  5. Step 5: Solve for x
    x = 127,975,897.17/13,065.79
  6. Step 6: Final answer
    x = 9,794.73

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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.