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Finding the Fourth Proportional to 15,762.40, 23,643.60 and 15,330.40

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Solution

The fourth proportional to 15,762.40, 23,643.60 and 15,330.40 is: 22,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762.40 : 23,643.60 = 15,330.40 : x
  2. Step 2: Convert to fraction form
    15,762.40/23,643.60 = 15,330.40/x
  3. Step 3: Cross multiply
    15,762.40x = 23,643.60 × 15,330.40
  4. Step 4: Simplify right side
    15,762.40x = 362,465,845.44
  5. Step 5: Solve for x
    x = 362,465,845.44/15,762.40
  6. Step 6: Final answer
    x = 22,995.60

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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.