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Finding the Fourth Proportional to 8,777.02, 12,111.90 and 4,798.26

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Solution

The fourth proportional to 8,777.02, 12,111.90 and 4,798.26 is: 6,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.02 : 12,111.90 = 4,798.26 : x
  2. Step 2: Convert to fraction form
    8,777.02/12,111.90 = 4,798.26/x
  3. Step 3: Cross multiply
    8,777.02x = 12,111.90 × 4,798.26
  4. Step 4: Simplify right side
    8,777.02x = 58,116,045.29
  5. Step 5: Solve for x
    x = 58,116,045.29/8,777.02
  6. Step 6: Final answer
    x = 6,621.39

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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.