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Finding the Fourth Proportional to 15,991,685.48, 22,069,047.54 and 8,748,341.48

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Solution

The fourth proportional to 15,991,685.48, 22,069,047.54 and 8,748,341.48 is: 12,072,996.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991,685.48 : 22,069,047.54 = 8,748,341.48 : x
  2. Step 2: Convert to fraction form
    15,991,685.48/22,069,047.54 = 8,748,341.48/x
  3. Step 3: Cross multiply
    15,991,685.48x = 22,069,047.54 × 8,748,341.48
  4. Step 4: Simplify right side
    15,991,685.48x = 193,067,564,018,273.97
  5. Step 5: Solve for x
    x = 193,067,564,018,273.97/15,991,685.48
  6. Step 6: Final answer
    x = 12,072,996.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.