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Finding the Fourth Proportional to 15,750.76, 23,630.76 and 4,657.74

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Solution

The fourth proportional to 15,750.76, 23,630.76 and 4,657.74 is: 6,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.76 : 23,630.76 = 4,657.74 : x
  2. Step 2: Convert to fraction form
    15,750.76/23,630.76 = 4,657.74/x
  3. Step 3: Cross multiply
    15,750.76x = 23,630.76 × 4,657.74
  4. Step 4: Simplify right side
    15,750.76x = 110,065,936.08
  5. Step 5: Solve for x
    x = 110,065,936.08/15,750.76
  6. Step 6: Final answer
    x = 6,987.98

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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.