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Finding the Fourth Proportional to 8,219,904.30, 11,526,761.70 and 8,219,904.30

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Solution

The fourth proportional to 8,219,904.30, 11,526,761.70 and 8,219,904.30 is: 11,526,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219,904.30 : 11,526,761.70 = 8,219,904.30 : x
  2. Step 2: Convert to fraction form
    8,219,904.30/11,526,761.70 = 8,219,904.30/x
  3. Step 3: Cross multiply
    8,219,904.30x = 11,526,761.70 × 8,219,904.30
  4. Step 4: Simplify right side
    8,219,904.30x = 94,748,878,062,905.30
  5. Step 5: Solve for x
    x = 94,748,878,062,905.30/8,219,904.30
  6. Step 6: Final answer
    x = 11,526,761.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.