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Finding the Fourth Proportional to 11,755,573.60, 17,609,740.80 and 6,700,979.20

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Solution

The fourth proportional to 11,755,573.60, 17,609,740.80 and 6,700,979.20 is: 10,038,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755,573.60 : 17,609,740.80 = 6,700,979.20 : x
  2. Step 2: Convert to fraction form
    11,755,573.60/17,609,740.80 = 6,700,979.20/x
  3. Step 3: Cross multiply
    11,755,573.60x = 17,609,740.80 × 6,700,979.20
  4. Step 4: Simplify right side
    11,755,573.60x = 118,002,506,818,191.38
  5. Step 5: Solve for x
    x = 118,002,506,818,191.38/11,755,573.60
  6. Step 6: Final answer
    x = 10,038,005.02

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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.