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Finding the Fourth Proportional to 25,762,904.80, 38,649,022.80 and 12,951,167.20

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Solution

The fourth proportional to 25,762,904.80, 38,649,022.80 and 12,951,167.20 is: 19,429,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,762,904.80 : 38,649,022.80 = 12,951,167.20 : x
  2. Step 2: Convert to fraction form
    25,762,904.80/38,649,022.80 = 12,951,167.20/x
  3. Step 3: Cross multiply
    25,762,904.80x = 38,649,022.80 × 12,951,167.20
  4. Step 4: Simplify right side
    25,762,904.80x = 500,549,956,399,412.06
  5. Step 5: Solve for x
    x = 500,549,956,399,412.06/25,762,904.80
  6. Step 6: Final answer
    x = 19,429,096.23

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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.