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Finding the Fourth Proportional to 9,891,064.70, 14,818,660.70 and 9,675,831.10

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Solution

The fourth proportional to 9,891,064.70, 14,818,660.70 and 9,675,831.10 is: 14,496,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891,064.70 : 14,818,660.70 = 9,675,831.10 : x
  2. Step 2: Convert to fraction form
    9,891,064.70/14,818,660.70 = 9,675,831.10/x
  3. Step 3: Cross multiply
    9,891,064.70x = 14,818,660.70 × 9,675,831.10
  4. Step 4: Simplify right side
    9,891,064.70x = 143,382,858,061,407.75
  5. Step 5: Solve for x
    x = 143,382,858,061,407.75/9,891,064.70
  6. Step 6: Final answer
    x = 14,496,200.60

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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.