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Finding the Fourth Proportional to 10,584,051.80, 15,876,077.70 and 9,072,397.40

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Solution

The fourth proportional to 10,584,051.80, 15,876,077.70 and 9,072,397.40 is: 13,608,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,584,051.80 : 15,876,077.70 = 9,072,397.40 : x
  2. Step 2: Convert to fraction form
    10,584,051.80/15,876,077.70 = 9,072,397.40/x
  3. Step 3: Cross multiply
    10,584,051.80x = 15,876,077.70 × 9,072,397.40
  4. Step 4: Simplify right side
    10,584,051.80x = 144,034,086,047,677.97
  5. Step 5: Solve for x
    x = 144,034,086,047,677.97/10,584,051.80
  6. Step 6: Final answer
    x = 13,608,596.10

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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.