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Finding the Fourth Proportional to 61,854.84, 85,357.40 and 33,559.92

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Solution

The fourth proportional to 61,854.84, 85,357.40 and 33,559.92 is: 46,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,854.84 : 85,357.40 = 33,559.92 : x
  2. Step 2: Convert to fraction form
    61,854.84/85,357.40 = 33,559.92/x
  3. Step 3: Cross multiply
    61,854.84x = 85,357.40 × 33,559.92
  4. Step 4: Simplify right side
    61,854.84x = 2,864,587,347.61
  5. Step 5: Solve for x
    x = 2,864,587,347.61/61,854.84
  6. Step 6: Final answer
    x = 46,311.45

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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.