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Finding the Fourth Proportional to 14,888.88, 20,545.98 and 8,923.86

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Solution

The fourth proportional to 14,888.88, 20,545.98 and 8,923.86 is: 12,314.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.88 : 20,545.98 = 8,923.86 : x
  2. Step 2: Convert to fraction form
    14,888.88/20,545.98 = 8,923.86/x
  3. Step 3: Cross multiply
    14,888.88x = 20,545.98 × 8,923.86
  4. Step 4: Simplify right side
    14,888.88x = 183,349,449.08
  5. Step 5: Solve for x
    x = 183,349,449.08/14,888.88
  6. Step 6: Final answer
    x = 12,314.52

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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.