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Finding the Fourth Proportional to 8,675,798.20, 11,972,602.40 and 4,808,568.76

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Solution

The fourth proportional to 8,675,798.20, 11,972,602.40 and 4,808,568.76 is: 6,635,825.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675,798.20 : 11,972,602.40 = 4,808,568.76 : x
  2. Step 2: Convert to fraction form
    8,675,798.20/11,972,602.40 = 4,808,568.76/x
  3. Step 3: Cross multiply
    8,675,798.20x = 11,972,602.40 × 4,808,568.76
  4. Step 4: Simplify right side
    8,675,798.20x = 57,571,081,876,541.02
  5. Step 5: Solve for x
    x = 57,571,081,876,541.02/8,675,798.20
  6. Step 6: Final answer
    x = 6,635,825.38

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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.