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Finding the Fourth Proportional to 13,030.93, 17,982.90 and 7,062.79

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Solution

The fourth proportional to 13,030.93, 17,982.90 and 7,062.79 is: 9,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.93 : 17,982.90 = 7,062.79 : x
  2. Step 2: Convert to fraction form
    13,030.93/17,982.90 = 7,062.79/x
  3. Step 3: Cross multiply
    13,030.93x = 17,982.90 × 7,062.79
  4. Step 4: Simplify right side
    13,030.93x = 127,009,446.29
  5. Step 5: Solve for x
    x = 127,009,446.29/13,030.93
  6. Step 6: Final answer
    x = 9,746.77

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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.