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Finding the Fourth Proportional to 8,992,138.02, 12,409,466.02 and 5,124,034.86

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Solution

The fourth proportional to 8,992,138.02, 12,409,466.02 and 5,124,034.86 is: 7,071,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992,138.02 : 12,409,466.02 = 5,124,034.86 : x
  2. Step 2: Convert to fraction form
    8,992,138.02/12,409,466.02 = 5,124,034.86/x
  3. Step 3: Cross multiply
    8,992,138.02x = 12,409,466.02 × 5,124,034.86
  4. Step 4: Simplify right side
    8,992,138.02x = 63,586,536,480,465.46
  5. Step 5: Solve for x
    x = 63,586,536,480,465.46/8,992,138.02
  6. Step 6: Final answer
    x = 7,071,347.92

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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.