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Finding the Fourth Proportional to 15,375.76, 23,070.93 and 9,148.07

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Solution

The fourth proportional to 15,375.76, 23,070.93 and 9,148.07 is: 13,726.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.76 : 23,070.93 = 9,148.07 : x
  2. Step 2: Convert to fraction form
    15,375.76/23,070.93 = 9,148.07/x
  3. Step 3: Cross multiply
    15,375.76x = 23,070.93 × 9,148.07
  4. Step 4: Simplify right side
    15,375.76x = 211,054,482.61
  5. Step 5: Solve for x
    x = 211,054,482.61/15,375.76
  6. Step 6: Final answer
    x = 13,726.44

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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.