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Finding the Fourth Proportional to 5,861,897.57, 8,089,867.42 and 3,688,303.88

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Solution

The fourth proportional to 5,861,897.57, 8,089,867.42 and 3,688,303.88 is: 5,090,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861,897.57 : 8,089,867.42 = 3,688,303.88 : x
  2. Step 2: Convert to fraction form
    5,861,897.57/8,089,867.42 = 3,688,303.88/x
  3. Step 3: Cross multiply
    5,861,897.57x = 8,089,867.42 × 3,688,303.88
  4. Step 4: Simplify right side
    5,861,897.57x = 29,837,889,375,430.07
  5. Step 5: Solve for x
    x = 29,837,889,375,430.07/5,861,897.57
  6. Step 6: Final answer
    x = 5,090,141.72

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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.