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Finding the Fourth Proportional to 19,795.51, 29,688.08 and 7,319.10

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Solution

The fourth proportional to 19,795.51, 29,688.08 and 7,319.10 is: 10,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.51 : 29,688.08 = 7,319.10 : x
  2. Step 2: Convert to fraction form
    19,795.51/29,688.08 = 7,319.10/x
  3. Step 3: Cross multiply
    19,795.51x = 29,688.08 × 7,319.10
  4. Step 4: Simplify right side
    19,795.51x = 217,290,101.06
  5. Step 5: Solve for x
    x = 217,290,101.06/19,795.51
  6. Step 6: Final answer
    x = 10,976.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.