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Finding the Fourth Proportional to 44,045.60, 66,068.19 and 12,455.60

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Solution

The fourth proportional to 44,045.60, 66,068.19 and 12,455.60 is: 18,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,045.60 : 66,068.19 = 12,455.60 : x
  2. Step 2: Convert to fraction form
    44,045.60/66,068.19 = 12,455.60/x
  3. Step 3: Cross multiply
    44,045.60x = 66,068.19 × 12,455.60
  4. Step 4: Simplify right side
    44,045.60x = 822,918,617.02
  5. Step 5: Solve for x
    x = 822,918,617.02/44,045.60
  6. Step 6: Final answer
    x = 18,683.34

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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.