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Finding the Fourth Proportional to 9,774,712, 13,490,711.22 and 5,425,198.48

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Solution

The fourth proportional to 9,774,712, 13,490,711.22 and 5,425,198.48 is: 7,487,666.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,774,712 : 13,490,711.22 = 5,425,198.48 : x
  2. Step 2: Convert to fraction form
    9,774,712/13,490,711.22 = 5,425,198.48/x
  3. Step 3: Cross multiply
    9,774,712x = 13,490,711.22 × 5,425,198.48
  4. Step 4: Simplify right side
    9,774,712x = 73,189,786,004,862.95
  5. Step 5: Solve for x
    x = 73,189,786,004,862.95/9,774,712
  6. Step 6: Final answer
    x = 7,487,666.75

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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.