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Finding the Fourth Proportional to 19,609.70, 27,061.70 and 10,657.22

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Solution

The fourth proportional to 19,609.70, 27,061.70 and 10,657.22 is: 14,707.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,609.70 : 27,061.70 = 10,657.22 : x
  2. Step 2: Convert to fraction form
    19,609.70/27,061.70 = 10,657.22/x
  3. Step 3: Cross multiply
    19,609.70x = 27,061.70 × 10,657.22
  4. Step 4: Simplify right side
    19,609.70x = 288,402,301.88
  5. Step 5: Solve for x
    x = 288,402,301.88/19,609.70
  6. Step 6: Final answer
    x = 14,707.13

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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.