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Finding the Fourth Proportional to 14,655.60, 21,986.64 and 7,264.08

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Solution

The fourth proportional to 14,655.60, 21,986.64 and 7,264.08 is: 10,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.60 : 21,986.64 = 7,264.08 : x
  2. Step 2: Convert to fraction form
    14,655.60/21,986.64 = 7,264.08/x
  3. Step 3: Cross multiply
    14,655.60x = 21,986.64 × 7,264.08
  4. Step 4: Simplify right side
    14,655.60x = 159,712,711.89
  5. Step 5: Solve for x
    x = 159,712,711.89/14,655.60
  6. Step 6: Final answer
    x = 10,897.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.