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Finding the Fourth Proportional to 8,703.60, 12,010.80 and 4,926.48

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Solution

The fourth proportional to 8,703.60, 12,010.80 and 4,926.48 is: 6,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.60 : 12,010.80 = 4,926.48 : x
  2. Step 2: Convert to fraction form
    8,703.60/12,010.80 = 4,926.48/x
  3. Step 3: Cross multiply
    8,703.60x = 12,010.80 × 4,926.48
  4. Step 4: Simplify right side
    8,703.60x = 59,170,965.98
  5. Step 5: Solve for x
    x = 59,170,965.98/8,703.60
  6. Step 6: Final answer
    x = 6,798.45

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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.