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Finding the Fourth Proportional to 61,946.60, 85,483.80 and 35,089.40

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Solution

The fourth proportional to 61,946.60, 85,483.80 and 35,089.40 is: 48,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,946.60 : 85,483.80 = 35,089.40 : x
  2. Step 2: Convert to fraction form
    61,946.60/85,483.80 = 35,089.40/x
  3. Step 3: Cross multiply
    61,946.60x = 85,483.80 × 35,089.40
  4. Step 4: Simplify right side
    61,946.60x = 2,999,575,251.72
  5. Step 5: Solve for x
    x = 2,999,575,251.72/61,946.60
  6. Step 6: Final answer
    x = 48,421.95

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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.