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Finding the Fourth Proportional to 9,966,710.70, 14,957,064.45 and 4,291,008.30

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Solution

The fourth proportional to 9,966,710.70, 14,957,064.45 and 4,291,008.30 is: 6,439,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966,710.70 : 14,957,064.45 = 4,291,008.30 : x
  2. Step 2: Convert to fraction form
    9,966,710.70/14,957,064.45 = 4,291,008.30/x
  3. Step 3: Cross multiply
    9,966,710.70x = 14,957,064.45 × 4,291,008.30
  4. Step 4: Simplify right side
    9,966,710.70x = 64,180,887,698,584.93
  5. Step 5: Solve for x
    x = 64,180,887,698,584.93/9,966,710.70
  6. Step 6: Final answer
    x = 6,439,525.50

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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.