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Finding the Fourth Proportional to 14,862.16, 20,509.98 and 8,894.08

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Solution

The fourth proportional to 14,862.16, 20,509.98 and 8,894.08 is: 12,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.16 : 20,509.98 = 8,894.08 : x
  2. Step 2: Convert to fraction form
    14,862.16/20,509.98 = 8,894.08/x
  3. Step 3: Cross multiply
    14,862.16x = 20,509.98 × 8,894.08
  4. Step 4: Simplify right side
    14,862.16x = 182,417,402.92
  5. Step 5: Solve for x
    x = 182,417,402.92/14,862.16
  6. Step 6: Final answer
    x = 12,273.95

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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.