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Finding the Fourth Proportional to 13,019.60, 17,966.95 and 7,051.13

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Solution

The fourth proportional to 13,019.60, 17,966.95 and 7,051.13 is: 9,730.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.60 : 17,966.95 = 7,051.13 : x
  2. Step 2: Convert to fraction form
    13,019.60/17,966.95 = 7,051.13/x
  3. Step 3: Cross multiply
    13,019.60x = 17,966.95 × 7,051.13
  4. Step 4: Simplify right side
    13,019.60x = 126,687,175.06
  5. Step 5: Solve for x
    x = 126,687,175.06/13,019.60
  6. Step 6: Final answer
    x = 9,730.50

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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.