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Finding the Fourth Proportional to 7,059,691.64, 9,739,138.68 and 4,157,693.36

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Solution

The fourth proportional to 7,059,691.64, 9,739,138.68 and 4,157,693.36 is: 5,735,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059,691.64 : 9,739,138.68 = 4,157,693.36 : x
  2. Step 2: Convert to fraction form
    7,059,691.64/9,739,138.68 = 4,157,693.36/x
  3. Step 3: Cross multiply
    7,059,691.64x = 9,739,138.68 × 4,157,693.36
  4. Step 4: Simplify right side
    7,059,691.64x = 40,492,352,221,955.16
  5. Step 5: Solve for x
    x = 40,492,352,221,955.16/7,059,691.64
  6. Step 6: Final answer
    x = 5,735,711.17

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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.