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Finding the Fourth Proportional to 56,563.40, 77,988.96 and 48,892.88

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Solution

The fourth proportional to 56,563.40, 77,988.96 and 48,892.88 is: 67,412.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,563.40 : 77,988.96 = 48,892.88 : x
  2. Step 2: Convert to fraction form
    56,563.40/77,988.96 = 48,892.88/x
  3. Step 3: Cross multiply
    56,563.40x = 77,988.96 × 48,892.88
  4. Step 4: Simplify right side
    56,563.40x = 3,813,104,862.60
  5. Step 5: Solve for x
    x = 3,813,104,862.60/56,563.40
  6. Step 6: Final answer
    x = 67,412.94

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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.