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Finding the Fourth Proportional to 70,702.98, 97,570.47 and 38,873.93

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Solution

The fourth proportional to 70,702.98, 97,570.47 and 38,873.93 is: 53,646.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,702.98 : 97,570.47 = 38,873.93 : x
  2. Step 2: Convert to fraction form
    70,702.98/97,570.47 = 38,873.93/x
  3. Step 3: Cross multiply
    70,702.98x = 97,570.47 × 38,873.93
  4. Step 4: Simplify right side
    70,702.98x = 3,792,947,278.77
  5. Step 5: Solve for x
    x = 3,792,947,278.77/70,702.98
  6. Step 6: Final answer
    x = 53,646.22

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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.