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Finding the Fourth Proportional to 61,892.60, 92,838.90 and 40,897.40

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Solution

The fourth proportional to 61,892.60, 92,838.90 and 40,897.40 is: 61,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,892.60 : 92,838.90 = 40,897.40 : x
  2. Step 2: Convert to fraction form
    61,892.60/92,838.90 = 40,897.40/x
  3. Step 3: Cross multiply
    61,892.60x = 92,838.90 × 40,897.40
  4. Step 4: Simplify right side
    61,892.60x = 3,796,869,628.86
  5. Step 5: Solve for x
    x = 3,796,869,628.86/61,892.60
  6. Step 6: Final answer
    x = 61,346.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.