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Finding the Fourth Proportional to 17,891,824.40, 26,842,207.80 and 5,762,430.80

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Solution

The fourth proportional to 17,891,824.40, 26,842,207.80 and 5,762,430.80 is: 8,645,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891,824.40 : 26,842,207.80 = 5,762,430.80 : x
  2. Step 2: Convert to fraction form
    17,891,824.40/26,842,207.80 = 5,762,430.80/x
  3. Step 3: Cross multiply
    17,891,824.40x = 26,842,207.80 × 5,762,430.80
  4. Step 4: Simplify right side
    17,891,824.40x = 154,676,364,966,720.25
  5. Step 5: Solve for x
    x = 154,676,364,966,720.25/17,891,824.40
  6. Step 6: Final answer
    x = 8,645,086.24

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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.