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Finding the Fourth Proportional to 47,317,811.40, 66,424,095 and 47,317,811.40

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Solution

The fourth proportional to 47,317,811.40, 66,424,095 and 47,317,811.40 is: 66,424,095

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,317,811.40 : 66,424,095 = 47,317,811.40 : x
  2. Step 2: Convert to fraction form
    47,317,811.40/66,424,095 = 47,317,811.40/x
  3. Step 3: Cross multiply
    47,317,811.40x = 66,424,095 × 47,317,811.40
  4. Step 4: Simplify right side
    47,317,811.40x = 3,143,042,799,625,683
  5. Step 5: Solve for x
    x = 3,143,042,799,625,683/47,317,811.40
  6. Step 6: Final answer
    x = 66,424,095

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.