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Finding the Fourth Proportional to 8,840.80, 13,254.45 and 4,461.40

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Solution

The fourth proportional to 8,840.80, 13,254.45 and 4,461.40 is: 6,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.80 : 13,254.45 = 4,461.40 : x
  2. Step 2: Convert to fraction form
    8,840.80/13,254.45 = 4,461.40/x
  3. Step 3: Cross multiply
    8,840.80x = 13,254.45 × 4,461.40
  4. Step 4: Simplify right side
    8,840.80x = 59,133,403.23
  5. Step 5: Solve for x
    x = 59,133,403.23/8,840.80
  6. Step 6: Final answer
    x = 6,688.69

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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.