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Finding the Fourth Proportional to 8,691,345.90, 11,995,541.64 and 5,019,602.54

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Solution

The fourth proportional to 8,691,345.90, 11,995,541.64 and 5,019,602.54 is: 6,927,908.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,345.90 : 11,995,541.64 = 5,019,602.54 : x
  2. Step 2: Convert to fraction form
    8,691,345.90/11,995,541.64 = 5,019,602.54/x
  3. Step 3: Cross multiply
    8,691,345.90x = 11,995,541.64 × 5,019,602.54
  4. Step 4: Simplify right side
    8,691,345.90x = 60,212,851,224,842.06
  5. Step 5: Solve for x
    x = 60,212,851,224,842.06/8,691,345.90
  6. Step 6: Final answer
    x = 6,927,908.74

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1.5x scale

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.