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Finding the Fourth Proportional to 7,144,591.98, 9,859,606.03 and 3,881,430.06

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Solution

The fourth proportional to 7,144,591.98, 9,859,606.03 and 3,881,430.06 is: 5,356,411.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144,591.98 : 9,859,606.03 = 3,881,430.06 : x
  2. Step 2: Convert to fraction form
    7,144,591.98/9,859,606.03 = 3,881,430.06/x
  3. Step 3: Cross multiply
    7,144,591.98x = 9,859,606.03 × 3,881,430.06
  4. Step 4: Simplify right side
    7,144,591.98x = 38,269,371,224,599.26
  5. Step 5: Solve for x
    x = 38,269,371,224,599.26/7,144,591.98
  6. Step 6: Final answer
    x = 5,356,411.02

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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.