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Finding the Fourth Proportional to 14,019,769.20, 19,656,020.40 and 14,019,769.20

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Solution

The fourth proportional to 14,019,769.20, 19,656,020.40 and 14,019,769.20 is: 19,656,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019,769.20 : 19,656,020.40 = 14,019,769.20 : x
  2. Step 2: Convert to fraction form
    14,019,769.20/19,656,020.40 = 14,019,769.20/x
  3. Step 3: Cross multiply
    14,019,769.20x = 19,656,020.40 × 14,019,769.20
  4. Step 4: Simplify right side
    14,019,769.20x = 275,572,869,398,491.66
  5. Step 5: Solve for x
    x = 275,572,869,398,491.66/14,019,769.20
  6. Step 6: Final answer
    x = 19,656,020.40

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1.5x scale

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.