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Finding the Fourth Proportional to 9,862.61, 14,748.99 and 7,365.55

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Solution

The fourth proportional to 9,862.61, 14,748.99 and 7,365.55 is: 11,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,862.61 : 14,748.99 = 7,365.55 : x
  2. Step 2: Convert to fraction form
    9,862.61/14,748.99 = 7,365.55/x
  3. Step 3: Cross multiply
    9,862.61x = 14,748.99 × 7,365.55
  4. Step 4: Simplify right side
    9,862.61x = 108,634,423.29
  5. Step 5: Solve for x
    x = 108,634,423.29/9,862.61
  6. Step 6: Final answer
    x = 11,014.77

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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.