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Finding the Fourth Proportional to 60,784.38, 83,841.48 and 52,812.90

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Solution

The fourth proportional to 60,784.38, 83,841.48 and 52,812.90 is: 72,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,784.38 : 83,841.48 = 52,812.90 : x
  2. Step 2: Convert to fraction form
    60,784.38/83,841.48 = 52,812.90/x
  3. Step 3: Cross multiply
    60,784.38x = 83,841.48 × 52,812.90
  4. Step 4: Simplify right side
    60,784.38x = 4,427,911,699.09
  5. Step 5: Solve for x
    x = 4,427,911,699.09/60,784.38
  6. Step 6: Final answer
    x = 72,846.21

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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.