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Finding the Fourth Proportional to 61,059.62, 84,220.21 and 42,948.76

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Solution

The fourth proportional to 61,059.62, 84,220.21 and 42,948.76 is: 59,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,059.62 : 84,220.21 = 42,948.76 : x
  2. Step 2: Convert to fraction form
    61,059.62/84,220.21 = 42,948.76/x
  3. Step 3: Cross multiply
    61,059.62x = 84,220.21 × 42,948.76
  4. Step 4: Simplify right side
    61,059.62x = 3,617,152,950.59
  5. Step 5: Solve for x
    x = 3,617,152,950.59/61,059.62
  6. Step 6: Final answer
    x = 59,239.69

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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.