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Finding the Fourth Proportional to 9,643,465, 13,308,603.78 and 5,351,113

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Solution

The fourth proportional to 9,643,465, 13,308,603.78 and 5,351,113 is: 7,384,881.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643,465 : 13,308,603.78 = 5,351,113 : x
  2. Step 2: Convert to fraction form
    9,643,465/13,308,603.78 = 5,351,113/x
  3. Step 3: Cross multiply
    9,643,465x = 13,308,603.78 × 5,351,113
  4. Step 4: Simplify right side
    9,643,465x = 71,215,842,699,007.14
  5. Step 5: Solve for x
    x = 71,215,842,699,007.14/9,643,465
  6. Step 6: Final answer
    x = 7,384,881.13

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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.