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Finding the Fourth Proportional to 70,569.34, 97,386.50 and 38,737.56

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Solution

The fourth proportional to 70,569.34, 97,386.50 and 38,737.56 is: 53,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,569.34 : 97,386.50 = 38,737.56 : x
  2. Step 2: Convert to fraction form
    70,569.34/97,386.50 = 38,737.56/x
  3. Step 3: Cross multiply
    70,569.34x = 97,386.50 × 38,737.56
  4. Step 4: Simplify right side
    70,569.34x = 3,772,515,386.94
  5. Step 5: Solve for x
    x = 3,772,515,386.94/70,569.34
  6. Step 6: Final answer
    x = 53,458.28

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1.5x scale

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.