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Finding the Fourth Proportional to 8,875.80, 12,248.64 and 4,842.63

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Solution

The fourth proportional to 8,875.80, 12,248.64 and 4,842.63 is: 6,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.80 : 12,248.64 = 4,842.63 : x
  2. Step 2: Convert to fraction form
    8,875.80/12,248.64 = 4,842.63/x
  3. Step 3: Cross multiply
    8,875.80x = 12,248.64 × 4,842.63
  4. Step 4: Simplify right side
    8,875.80x = 59,315,631.52
  5. Step 5: Solve for x
    x = 59,315,631.52/8,875.80
  6. Step 6: Final answer
    x = 6,682.85

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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.