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Finding the Fourth Proportional to 13,207,502.80, 18,533,019.20 and 13,207,502.80

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Solution

The fourth proportional to 13,207,502.80, 18,533,019.20 and 13,207,502.80 is: 18,533,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,502.80 : 18,533,019.20 = 13,207,502.80 : x
  2. Step 2: Convert to fraction form
    13,207,502.80/18,533,019.20 = 13,207,502.80/x
  3. Step 3: Cross multiply
    13,207,502.80x = 18,533,019.20 × 13,207,502.80
  4. Step 4: Simplify right side
    13,207,502.80x = 244,774,902,976,453.75
  5. Step 5: Solve for x
    x = 244,774,902,976,453.75/13,207,502.80
  6. Step 6: Final answer
    x = 18,533,019.20

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.