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Finding the Fourth Proportional to 61,159.55, 84,403.01 and 38,202.95

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Solution

The fourth proportional to 61,159.55, 84,403.01 and 38,202.95 is: 52,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,159.55 : 84,403.01 = 38,202.95 : x
  2. Step 2: Convert to fraction form
    61,159.55/84,403.01 = 38,202.95/x
  3. Step 3: Cross multiply
    61,159.55x = 84,403.01 × 38,202.95
  4. Step 4: Simplify right side
    61,159.55x = 3,224,444,277.39
  5. Step 5: Solve for x
    x = 3,224,444,277.39/61,159.55
  6. Step 6: Final answer
    x = 52,721.85

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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.