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Finding the Fourth Proportional to 15,660,005.70, 23,490,008.55 and 15,660,005.70

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Solution

The fourth proportional to 15,660,005.70, 23,490,008.55 and 15,660,005.70 is: 23,490,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660,005.70 : 23,490,008.55 = 15,660,005.70 : x
  2. Step 2: Convert to fraction form
    15,660,005.70/23,490,008.55 = 15,660,005.70/x
  3. Step 3: Cross multiply
    15,660,005.70x = 23,490,008.55 × 15,660,005.70
  4. Step 4: Simplify right side
    15,660,005.70x = 367,853,667,786,048.75
  5. Step 5: Solve for x
    x = 367,853,667,786,048.75/15,660,005.70
  6. Step 6: Final answer
    x = 23,490,008.55

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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.