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Finding the Fourth Proportional to 6,899,561.70, 10,368,004.95 and 6,078,416.10

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Solution

The fourth proportional to 6,899,561.70, 10,368,004.95 and 6,078,416.10 is: 9,134,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899,561.70 : 10,368,004.95 = 6,078,416.10 : x
  2. Step 2: Convert to fraction form
    6,899,561.70/10,368,004.95 = 6,078,416.10/x
  3. Step 3: Cross multiply
    6,899,561.70x = 10,368,004.95 × 6,078,416.10
  4. Step 4: Simplify right side
    6,899,561.70x = 63,021,048,212,959.69
  5. Step 5: Solve for x
    x = 63,021,048,212,959.69/6,899,561.70
  6. Step 6: Final answer
    x = 9,134,065.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.