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Finding the Fourth Proportional to 70,569.11, 97,385.22 and 38,737.32

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Solution

The fourth proportional to 70,569.11, 97,385.22 and 38,737.32 is: 53,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,569.11 : 97,385.22 = 38,737.32 : x
  2. Step 2: Convert to fraction form
    70,569.11/97,385.22 = 38,737.32/x
  3. Step 3: Cross multiply
    70,569.11x = 97,385.22 × 38,737.32
  4. Step 4: Simplify right side
    70,569.11x = 3,772,442,430.41
  5. Step 5: Solve for x
    x = 3,772,442,430.41/70,569.11
  6. Step 6: Final answer
    x = 53,457.42

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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.