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Finding the Fourth Proportional to 60,457.60, 90,643.20 and 27,150.40

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Solution

The fourth proportional to 60,457.60, 90,643.20 and 27,150.40 is: 40,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,457.60 : 90,643.20 = 27,150.40 : x
  2. Step 2: Convert to fraction form
    60,457.60/90,643.20 = 27,150.40/x
  3. Step 3: Cross multiply
    60,457.60x = 90,643.20 × 27,150.40
  4. Step 4: Simplify right side
    60,457.60x = 2,460,999,137.28
  5. Step 5: Solve for x
    x = 2,460,999,137.28/60,457.60
  6. Step 6: Final answer
    x = 40,706.20

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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.